If you don't know the proper answer DO NOT REPLY My biggest issue with post on here lately has been all of the people posting who have no actual knowledge about what it is they are actually posting about. $), Sierra Leone (USD O&E Speed Shop - 2333 Aberdeen St. Kenner, LA EFI Calibrator - decipha @ EFIDynoTuning Save this tune file with a file name you can remember (i.e. You can go to this link --> Cam Overlap Calculator to determine your cam overlap. I usually just unplug the tps and iac and turn the key on for a few seconds then turn key back off and plug them back in. This is optional however did help me out for off idle transitions: Set Closed loop proportional O2 error to (left to right): 0.06250 0.06250 0.06250 0.06250 0.06250 0.06250 0.06250 0.15479 0.18750 0.21484 0.24023 0.27002 0.27979. The STIT & LTIT add together to offset the base running airflow to keep the engine idling properly. $), Rwanda (USD See what your IAC was at hot idle. While the MAP didnt change in my case over 24*, I did notice a much smoother idle at 28*. $), Macao SAR (USD $), Niue (USD If you have an account, sign in now to post with your account. $), Palestinian Territories (USD O&E Speed Shop - 2333 Aberdeen St. Kenner, LA. I knew it wasn't available before. $), Tunisia (USD The trims act slow so that is why the spark advance correction tables are so critical (discussed below). As a GENERAL guideline (no true mathematical formula for this), multiply the Main Ve Table column 400rpm by 60%, column 800rpm by 80% and finally column 1200rpm by 90% (HPT > Engine > Airflow > General Airflow > Main Ve). $), British Virgin Islands (USD ), save and reflash the new changes to the PCM. $), Philippines (USD $), Indonesia (USD Setting the Min Values to -0.5g/sec is very beneficial for big cams as on a hot restart more airflow is necessary. Ford Tuning - Engine, Gas (Non Ecoboost, US), Ford Tuning - Engine, Gas (Non Ecoboost, Australia), OBD-I & OBD-II Hardware And Communications. Misfires. $), Vietnam (USD $), Denmark (USD If you tune a lot of GEN 3 GM stuff, this can greatly assist! Get your SxS or Sea-Doo performing its best with MPVI3 and VCM Suite. Choose your class below for more information and to register. Hardware Support. $), South Sudan (USD $), Seychelles (USD $), Egypt (USD Im still having a .4% anomaly. $), Cook Islands (USD When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Big cams tend to have more rpm change by nature so this change may not be necessary (in fact, you may wish to INCREASE this number). Do not completely disable the codes or the PCM will not fall into SD mode. I bought another tps yesterday, this time Acdelco professional. $), Guadeloupe (USD $), New Zealand (USD November 28, 2008 in PCM Tuning. Join to discuss rebuilds, modifications, tech articles and more! Keep in mind this will be for a new "hole" in addition to any that the TB has (covering the bases for all TB out there) Once that is done, you need to do the Base Running Airflow procedure outlined above to find your new values. $), Canada (USD I dont know what the hell the deal is. Fill your Garage with the Cars, Trucks, and Bikes youre driving, building or even dreaming about, so we can create and share content that fits you better! https://forum.hptuners.com/showthread.php?42387-cant-get-TPS-to-reset-to-0/page2. Ok I searched here and saw nothing. Air conditioning fluctuations. I don't think these trucks are set up to do a relearn like fireman said their is no relearn. Do this by going to the VCM bi-directional controls and disable the Adaptive Spark Control (called Spark Idle under the fuel and spark tab) by actually clicking the ON button. Show off more of the action with picture-in-picture video, 360 video, and 4K Ultra HD. This website uses cookies to improve your experience. $), Mexico (USD See your lap times, drag strip ETs, and off-road adventures instantly, analyze laps and data, and impress your crew with sweet video overlay in just minutes. We also use third-party cookies that help us analyze and understand how you use this website. $), Belarus (USD I also pulled a few spark plugs and noticed they were not soot covered however were not lean as well. The ETCtable is for Electronic Throttle Control cut-off. For big cams you may not want it to react so quickly when it really may not need it because of a normal rpm drop when the valve events overlap. Basically goes something like this: rev the car and it dies. $), Wallis & Futuna (USD 2020 Ford Mustang GT I noticed when I looked at another person's hp log with a 2019 Mustang that their tps% in vcm scanner read from 7% to 100% but when I looked at the logs from my car it reads from 9% to 89% it never goes higher than that. $), Kyrgyzstan (USD $), Guatemala (USD and get a heat cycle into your new valve springs (assuming you swapped them) OR you can dive strait into logging for the Desired Base Running Airflow numbers based on your specific cam and engine set-up. $), Kiribati (USD How do I do a TPS reset or relearn? Top Answer. Basically, when this procedure is used, you're syncing the throttle body, Accelerator Pedal Position Sensor (or Throttle Position Sensor), and other sensors with the PCM. Double-digit numbers can indicate a tune issue or a mechanical issue. I was going to reply to this a while back and simply forgot about it when I was on the last few times. Actually use it alot and let me tell you, it's quite awesome. 00:22 Why should I use the Crank Relearn Procedure?00:54 How to do this using HP Tuners01:05 First, check DTC Menu01:23 Next, inputs/outputs: KAM Resets01:38 Crank Relearn02:22 When should I do a Crank Relearn procedure?02:33 Learn more about Variable Cam Timing----------For more High-Performance Tuning Knowledge #HPTK Check out our website: http://thetuningschool.com/newtuners/Be sure to follow us onFacebook: https://www.facebook.com/TheTuningSchoolInstagram: https://instagram.com/thetuningschool/Produced by Tuned Media - http://tunedmedia.com/ $), St. Pierre & Miquelon (USD $), French Polynesia (USD YouTube saw it first. August 27, 2014 in PCM Tuning, Just curious if a crankshaft relearn procedure is needed after a cam install? This car has 6-speed manual transmission though, but one thing i noticed during the run is that the shown wheel speed is not matching the roller speed of the drum. Keep raising this by 0.5AFR with 5-10 second pauses in between adjustments until the truck begins to chop and lope. You can post now and register later. 5095 $), Venezuela (USD Basically goes something like this: rev the car and it dies. In 1998, the Camaro and Firebird received a cable . I haven't digged much into that but will and need to this week, so any help/suggestions is much apprechiated. The Fora platform includes forum software by XenForo. There's a sticky on the HP Tuners forum covering it here: http://www.hptuners.com/forum/showthread.php?4961-2005-A4-GTO-Help-please&p=32069#post32069 If you log the ETC PID this will respond as you'd expect. $), Haiti (USD I was also able to dial in my idle so nicely and get the timing perfect on it to where it uses the least amount of fuel and still has enough timing correction. $), United Kingdom (USD $), Antigua & Barbuda (USD That is our job to find out and know when to go what way. After refusing to believe just the overlap and the headers would cause this bad of a false lean condition (and subsequent maxed + fuel trims), I confirmed I had no air/exhaust leaks. $), Mauritius (USD Taxes and shipping calculated at checkout. Time to back off the AFR off by lowering it 0.1AFR at a time until you have found the sweet spot for idle quality. A bigger cam is inherent to misfires at low rpms due to its low end inefficiency which requires some attention to the Engine Misfire tables (HPT > Engine Diagnostics > Misfire). $), Cameroon (USD There is no crank relearn just need a return. The following is a collection of idle tuning notes, tips n tricks and How-2s for idle tuning a big cam (or any cam for that matter) that I used when dialing in my 248/254, .615"/.622", 112 LSA using HP Tuners. Learn more about HP Tuners Want better coverage of your track days and off-road adventures? Ill have to either do a tps reset or back the throttle blade out a tad. $), Libya (USD To do this go to HPT > Engine > Fuel Control > OL&CL > Long Term Fuel Trim Enable, and make both the Min. Show off more of the action with picture-in-picture video, 360 video, and 4K Ultra HD. $), Oman (USD Congrats you've successfully done a tps relearn. coming to a stop). Cams with over 0 overlap up to 15, idle 900-950 all cells across the board, add 2 g/sec to idle airflow across the board both in P/N and in gear (HPT > Engine > Idle > Idle Airflow > Base Running Airflow), add 4 of idle timing 1200 rpm and under and 0.08 0.28 g/cyl inclusive (HPT > Engine > Spark Control > Spark Advance > Idle Spark Advance (in Park). Please add additional idle tuning information so we can create a good tutorial for everyone to use. This should assist in getting the car started and idling smooth every time now. If you get some idle surge, chances are you may have too much timing in there (if your base running airflows are tuned and your fueling is good). $), Mauritania (USD TPS should read right around 0.4% - 0.8% for best results here. The authorized use of such tools is to bring a motor vehicle into emissions compliance and/or to maintain emissions compliance, as well as for use on competition/racing and other exempted vehicles. I even replaced the TPS, and it still does it. S10forum is the community to discuss the S-Series, Chevrolet Colorado and GMC Canyon. Well not really. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. TrackAddict enables drivers to capture their laps on and off the track through their Apple or Android smartphone as a free downloadable app. $), Laos (USD You cannot paste images directly. If it runs at 180 when warm then 150 is your target (this is typical for a 160* thermostat). If you choose to follow any of these How-2s, please do so at your own risk and do one change at a timein other words, I am not responsible if you blow it up or damage your engine. $), Panama (USD Each setup will want different things (depending on the combustion chamber design and compression for example). $), Latvia (USD Put the MAX Adaptive Idle Airflow values you zerod out previously back to stock (4.50g/sec) and put the Min values to -0.5 g/sec or less. While you have your file open, set your Min temp for adaptive idle to an appropriate temperature (HPT > Engine > Idle > Idle RPM > Adaptive Idle RPM Min ECT). In your scan, look at the timing line in the chart viewdoes it bounce high and low or does it remain relatively stable (+/- 2*)? $), Ethiopia (USD This will give a nice curve and should avoid surging due to fueling. Again, smoothing is a good idea for proper transitions. Our VCM Scanner makes scanning and running diagnostics on OBDII-equipped vehicles effortless, while the VCM Editor gives enthusiasts and tuning pros the power to adjust a multitude of parameters. $), Grenada (USD When I go to crank it back up, it never goes to 0%. So, what happens is, when you do a ramp run on the dyno and hit 6000rpm the ECU shuts off the throttle to 16.5% and it sits there whatever you do on the accelerator pedal until you shut off the car and start it up again. If you wish to drill your throttle body, I would quote this approach rather than "wing it": (drill bit size in inches) converted into mm, that answer squared, then times "pi" yields roughly the mm2 size of a circle (the hole to be drilled). Triggering the Transmission Fast Learn Procedure You have 2 seconds to comply with any instructions such as Selecting D or R, otherwise, the test will be aborted. $), Moldova (USD By disabling the Adaptive Spark Control using the scanner, you effectively ignore the Idle Overspeed and Underspeed tables you tuned prior to this. It's explained in detail here: http://www.gearchatter.com/viewtopic9440.php. Also the ETC Area Scalar (HPT > Engine > Idle > Idle Airflow > General > ETC Area Scalar) falls into the same category. I should have figured this however I didnt realize it would be this bad. Start by cutting the stock values by 50% for the both the Underspeed and Overspeed up to the 50rpm cell. $), Trinidad & Tobago (USD If you have a real cold night, you can hit the low temperature cells and fine tune from there. Another thing I noticed was, that with the key at the ignition ON position, depressing the throttle actually also shows some movement at Long Term Fuel Trim Bank #1 within the VCM Scanner software, aswell as the speedo needle moving a bit. Set Pe enrichment to 1.0 from 0RPM to 1200RPM inclusive. $), Solomon Islands (USD Do this overall procedure 2 times (2 times in park and 2 times in gear) with reflashing the new numbers each time. $), India (USD $), Find out what's new and get added to the interest list, South Georgia & South Sandwich Islands (USD $). It is mandatory to procure user consent prior to running these cookies on your website. For example, 14.7/16.3=0.9. Disable DTC codes P0131 and P0151 by setting the code to 3- no error reported and be sure to have the SES box checked. Hp tuners stated its extremely rare to brick your computer. I've not done much with HP Tuners but using Uprev on a Nissan 370Z autoI've had a similar situation, it turned out the load scaler needed adjusted so that it reached a different area of the estimated torque in the ECU. $), Mozambique (USD $), Gabon (USD If it's not for you, simply tell us and we'll quickly refund every cent. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Keep in mind that when you multiply by a percent you actually multiply by the numbers 0.6, 0.8 and 0.9 respectively. Tags: Update RPM error time (HPT > Engine > Idle > Idle RPM > Adaptive Idle RPM > Update RPM Err Time) can be set to ~0.4 so the STIT reacts a bit faster on mildly cammed trucks. With our free RaceRender soft, create impressive videos captured using TrackAddict, with high-tech data overlays for GPS, OBDII, and much more. Save this file and re-flash the PCM. Goat Rope Garage 80.1K subscribers Join Subscribe 223 Share Save 9.4K views 3 years ago Support Those Who Support The Garage. Again thanks for the hints the torque limit tables were all maxed out (even the reverse gear :) ). If you do this procedure in the summer, expect to do it again when it gets cold so you can hit those colder cells. that would be cool. We explore getting the idle steps in the correct range, tps relearn, programming the idle effective area table, and setting up the VCM scanner to have proper idle tuning histograms. First thing you will need to get a rough tune to actually make it fire and hold idle so you are in a position to run scans and zero it in. $), United States (USD $), Taiwan (USD As a guideline, it should be *about* 30 degrees cooler than your engine normally runs. Also the Fuel System #1 Status displays OL-FAULT. live webinars, video lessons and discounts on courses. This began on the last handful of flashes. $), El Salvador (USD i didn't write reports that long in college, nice post. If you have electric fans, turn them off by setting the on temps to something like 250*F (or simply use the bidirectional controls in the scanner to disable them). Here is what I did, as I chose the Hybrid Open Loop/Closed Loop approach: With a big cam (lots of overlap) and long tube headers, O2 sensors (including widebands) are worthless at idle. $), United Arab Emirates (USD (*Note if your fuel trims go way positive upon re-enable of the LTFTs, please read the second section Big Cam Tips, Tricks and Discussion). $), Guinea (USD whats it supposed to accomplish? Your link has been automatically embedded. February 15, 2015 by LS Engine DiY. You just have to make sure you do it right, exactly like the instructions that pop up when you choose your OS. $), Nauru (USD $), Tristan da Cunha (USD $), Finland (USD 1: Unplug MAF (Replace with strait bellows if you do not have intentions of ever using a MAF again ie. $), Uganda (USD I save it to a different file called Working Tune personally. $), Lithuania (USD Wondering how and why you should do mechanical timing changes to your Ford? $), Jersey (USD $), Namibia (USD I had two approaches that I tried. $), Guernsey (USD Of course you will need to do the Base Running Airflow procedure again to see what has changed. $), Lebanon (USD Since a cam is typically less efficient at idle the VE table will need to be scaled down in the initial tune to keep some fueling out. $), Bahamas (USD $), Niger (USD In the same group of tables, set the Delay RPM and Enable Torque to Zero. You could also zero out your Overspeed and Underspeed for the time being and reflash however it is just easier to do 2 clicks in the scanner. Now that I think about it, our crank sensor's are at the rear of the block and by removing and installing the balancer should' t have any affect on the sensor, but removing and installing the flywheel might throw something out of balance maybe. .. Hey mark how are you doing? Its awesome. 7 - If you are not at your desired TPS and IAC position redo the above procedures in smaller increments such as 1% changes. Here is the relearn procedure for our LS2 engines for throttle body: 1. This process may take a few shots, so dont give up! This signal voltage is one of the most important inputs used by the PCM. The data will be pasted into the Base Running Airflow table (HPT > Engine > Idle > Idle Airflow > Base Running Airflow) for both P/N and In-Gear. Now I needed to find a way to keep my fueling stable during idle. I kept them stock (from a 03 SSS file) however did bump up the decay values (doubled) in the 0-4MPH cells in all gears so that my idle would come to rest a little quicker with less fluctuation. Put gear shifter in "P" (Park), turn off all accessories. ;), Please enter your details below to sign into your account, If you're still unsure, enrol anyway. This prevents any Pe mode fuel enrichment to occur. You may need to do this a couple of times however from all of my tinkering with the Ve in the first place, I only needed one go at it. Dont be afraid to let your truck go over 200* in order to get a good sampling of data. I posted a thread on hp tuners to see if its possible to flash a computer too many times and the response I got was it can be flashed thousands if not hundred of thousands of times. Be safe here and stay in the drivers seat during the entire procedure. Open VCM Scanner. $), Benin (USD Dial-in your performance for the street, track, off-road trails, or water with the software suite that changed the game. I'm not sure how to set the scanner up for it. $), Netherlands (USD and Max. $), Faroe Islands (USD $), Djibouti (USD The following assumes that you have all of your other tables correct for your pre cam install set-up (IFR, Ve etc.). $), Azerbaijan (USD thats a old carb trick ,works on cable driven tb's but is a no no on drive by wire from what ive been told, I just wanted to check if you wrote for a/f ratio 16.3, I have a 06ss408strocker with a 112maggie 2.8 and my a/f ratio is at 14.0-15.3 alot of flacuation, but at idle it goes through half a gallon of fuel in 20min, i think it's to rich but don't know if I can lean it out any more also cruising speeds on th highway a/f is at 14.0-15.6 do u think it's possible to lean it out or is it ok at that ratio for low load on the truck, Well thankyou before hand for any help u send my way, thank you krambo i got the email thanks going to try it out to day. Diagnose Mass Air Flow Problems w/ VCM Scanner. Allow engine to idle for at least one minute. I found this on gm trucks.com. This website uses cookies to improve your experience while you navigate through the website. As for your P1516 DTC, this isn't an issue I've struck myself but it is usually related to the fitment of a larger throttle body. You can post now and register later. $), Kenya (USD This is so that no unnecessary over-revving occurs at idle as well as to allow an easier job of setting the Crank Position Variation Relearn. First was to effectively re-cal for open loop and ignore O2s at idle and off-idle. Get your scanner connected to the car and turn the Key On, Engine Off (KOEO). Is there a procedure to calibrate TPS and FPS within HP Tuners? $), Nicaragua (USD Find what g/cyl is referenced at that moment and increase your spark tables in that area to improve stall resistance / stumble (dont go crazy with the timing though a few degrees may be all that is needed). SAVE ALL OF THIS GOODNESS YOU HAVE BEEN WORKING ON! If you do not hit these marks you can experience issues. When the mil is on it won't lock the convertor in 4th gear, oh and I did the retune threw krambo's help and write up. $), Jordan (USD Ready to hit the track or explore off the beaten path? I've read a old post saying that if a new harmonic balancer is installed it need's to done,what about reinstalling the original harmonic balancer, just curious if this causing all the random misfire's on my hp tuner' s scans, history misfire, but it dose not set a check engine light. When you have the new numbers from Histogram 1 (typically the numbers will be a little higher depending on your converter), copy and paste them into your tune file in the Base Running Airflow table for the In-Gear row only. Krambo When I go to crank it back up, it never goes to 0%. Its still doing it. The TP sensor is mounted to the left side of the throttle body. 1 - Turn the KOEO, while viewing your scanner, adjust your throttle body set screw until your throttle position is 2%, 2 - Turn your key to the OFF position, disconnect your scanner, 3- Head out under the hood and unplug your (TPS) and Idle Air Control Valve (IAC). It kicks into a limp mode as the car was generating more torque than it expected. This category only includes cookies that ensures basic functionalities and security features of the website. $), Iceland (USD The TP sensor provides a voltage signal that changesrelative to throttle blade angle. Even when I cut the key off. Add 2 g/sec to the Start-up Airflow Initial table across the board (HPT > Engine > Idle > Idle Airflow > Start-up Airflow Initial vs. ECT). Make sure that your Idle Spark Advance table (both In Drive and In Park) match your High and Low Octane Table for all columns up to 1200rpm (HPT > Engine > Spark Control > Spark Advance > Idle Spark Advance (in Park, in Gear), Hi and Lo Octane). great news, what did it make in the end up? We'll assume you're ok with this, but you can opt-out if you wish. $), Japan (USD $), Chile (USD I was thinking of getting Hp Tuners for mine because the dealer wants $100 for a crank relearn and I dont have a pcm with my vin. if stock setting is 10, go to 9 and try it, and so on) but do not go lower than 2.5%. Click a thumbnail to watch one of our latest videos! Reset the LTFT using the VCM Controls (VCM Scanner > VCM Controls > Fuel & Spark > Reset Fuel Trims). If you have issues with a bad stutter when the AC engages, up your Idle RPMs with the A/C on (both in gear and in P/N) only by 50RPMs across the board. Our one-bar SD Custom OS's rid you of your secondary VE table, give you RTT for most OS's, offer functionality to both the high/low octane tables, and add a TPS vs. RPM multiplier. We usually reply within 12hrs (often sooner). Then turn the car off and start the engine and drive.When a TPS goes bad, then the car's throttle body . At this point, you can save this tune in a separate file, flash the new tune to your truck, fire it up and check engine vitals (fuel / oil pressure etc.) These cookies will be stored in your browser only with your consent. Pasted as rich text. After 30 seconds, turn the Key back off. $), Tajikistan (USD $), North Macedonia (USD You will need to experiment here as each application is different. Silikhan Publishing Group, llc & SilveradoSS.com This category only includes cookies that ensures basic functionalities and security features of the website. $), Turkey (USD Before you drill a hole in your throttle body, before you toss some odd numbers like commanding a 1500rpm idle at your tune, or before you just deal with a terrible idle that you cannot seem to get ironed out, take a read! Join the HPTuners crew by subscribing to our YouTube channel! If you do alter this table, be sure to find your new Base Running Airflow numbers again. Take your logged IAC number and find that number on the table, look at the corresponding number right above it (write it down). in the VCM Scanner. $), Turkmenistan (USD Instant access to EVERY course (including all future courses), free t-shirts and more. $), St. Lucia (USD A cold start-up is required for each scan so be prepared that this may take a good weekend of tuning. Keep me signed in. $), Singapore (USD $), Sudan (USD Powered by Invision Community, Silikhan Publishing Group, llc & SilveradoSS.com. Save the changes and Flash the PCM with the new settings. Set the 1600rpm column from 0-12MPH to zero as well. 6 Your scanner should now read 0-0.8% range even though you added that 2% opening to it. $), Vatican City (USD Car is supercharged with a centri blower. Paste as plain text instead, $), Qatar (USD $), Dominican Republic (USD Anyone with HPtuners or EFI Live tuning software can do this also. $), Czechia (USD But opting out of some of these cookies may have an effect on your browsing experience. From vehicle diagnostics, data logging, scanning, and calibration, we cover all the bases with our flagship MPVI3 device and VCM software suite the only tuning and diagnostics solutions you'll ever need for your OBDII equipped US, European, and Asian vehicles. Its even does this after flashing. 1421 Mine is higher than that and it gives me no trouble (so far logged about 15 hours of run time). Then tried the "CASE relearn" and this time it worked ! We also use third-party cookies that help us analyze and understand how you use this website. $), Guinea-Bissau (USD It's way too high, so when the dyno shows 160kmh, VCM Scanner already shows 250kmh but then again, why would a speed limiter drive the DBW into, what feels like, fault mode? We'll assume you're ok with this, but you can opt-out if you wish. Have your cam card handy and follow the inputs in the calculator. $), Malta (USD If you transition from In Park to In Drive spark advance tables to the main spark tables and they are not the same (or very close) you run the risk of a stumble, its just good practice. $), Costa Rica (USD $), Maldives (USD Rookie mistake Ive been making, I picked up on last night, for some reason in my scanner my histogram is set in kpa instead of g/s like the timing maps are. You also have the option to opt-out of these cookies. If you log the ETC PID this will respond as you'd expect. $), Ukraine (USD This also happens on the street, not just the dyno and of course in about every gear you try that.

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