Setting the Min Values to -0.5g/sec is very beneficial for big cams as on a hot restart more airflow is necessary. Being that I was effectively in Open Loop with this procedure, the fuel trims would leave the fueling alone and the motor runs nicely and wouldnt grow rich as it sits idlingand I could still use the LTFT for cruising. Save the changes and Flash the PCM with the new settings. This website uses cookies to improve your experience while you navigate through the website. Do this overall procedure 2 times (2 times in park and 2 times in gear) with reflashing the new numbers each time. Im still having a .4% anomaly. Ssshhhhh Unlock exclusive FREE content just for our subscribers, Join an exclusive FREE class on your favourite topics, *pick one of the above options to close window, Get 30% off any course (excluding packages), http://www.gearchatter.com/viewtopic9440.php, http://www.hptuners.com/forum/showthread.php?4961-2005-A4-GTO-Help-please&p=32069#post32069. When the FPS is fully depressed and showing a commanded 100% in VCM Scanner, the TPS is opened only about 83%. 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! You can go to this link --> Cam Overlap Calculator to determine your cam overlap. When doing the job on HPT it won't tell you if you were successful. 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. $), Greece (USD This will give a nice curve and should avoid surging due to fueling. 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? Blend the timing numbers into the 1600rpm+ columns so there are no huge numerical transitions. Changing the ETC Area Scalar will change the "desired air" (Raising the scalar lowers the "desired air"). $), Mozambique (USD I have a stock throttle body and stock intake. Then turn the key back on clear the codes and the tps is reset to 0. this car has a previous history with the same issue. $), Caribbean Netherlands (USD $), St. Barthlemy (USD $), Ireland (USD $), Papua New Guinea (USD 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. $), Uruguay (USD $), St. Helena (USD LS1GTO.com is a forum community dedicated to the LS1 Pontiac GTO. First turn the key off. Max temp -- leave it alone, I run mine at 220*. $), Falkland Islands (USD and I spent about 10 hour's tunning on Sunday. if stock setting is 10, go to 9 and try it, and so on) but do not go lower than 2.5%. Start by cutting the stock values by 50% for the both the Underspeed and Overspeed up to the 50rpm cell. 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). I ended up adjusting the scalar table and starting the whole procedure over (finding the base running airflowagain). 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. $), Suriname (USD $), Libya (USD It is mandatory to procure user consent prior to running these cookies on your website. $), Canada (USD On IAC controlled vehicles, it's needed to bring IAC counts back to a point where the stepper motor can provide a benefit. The TP sensor has a 5.0 volt reference, a ground and a signal circuit. Learn more about HP Tuners When you purchase through links on our site, we may earn an affiliate commission, which supports our community. Taxes and shipping calculated at checkout. $), Norfolk Island (USD 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. $), Pakistan (USD If I should get the map and tps sensor performance codes, I will revisit the drilling as that is my indicator that the IAC can't flow the necessary air. Car is supercharged with a centri blower. Download and Open this idle configuration -->. 1: Unplug MAF (Replace with strait bellows if you do not have intentions of ever using a MAF again ie. Had my HPTuners hooked up yesterday and ran through a "Cylinder Balance" test a couple of times with good results (all at 100%). This procedure will get you real close to dialing in your Base Running Airflow table and you should notice a significant improvement on idle quality especially transitioning from Park to Drive after each set of new numbers entered into your tune. Upload or insert images from URL. i haven't even messed with any of the new releases. $), Mauritania (USD $), India (USD $), Japan (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. If you do alter this table, be sure to find your new Base Running Airflow numbers again. JavaScript is disabled. $), South Korea (USD $), Chad (USD Misfires will prevent the Torque converter from locking when commanded among other thinngs. I bought another tps yesterday, this time Acdelco professional. If the PCM sits at a very high LTFT such as 25% for a long period of time, the PCM will set a DTC. and then told me he had to do that to get it to take. We can scan the Conti sensor as a 21 and newer or 22 Jeep JL and it will scan. $), Armenia (USD Whether or not you've had one done on your own vehicle isn't relevant as to whether or not you should have had it done. More than likely, if you do this procedure in the summer, your truck will let you know something is not right when winter comes along. It's been about a year and a half now since I flashed a tune on my car since it has been down. Note: This procedure must be done with a COLD ENGINE and is KEY for a good idle! You also have the option to opt-out of these cookies. $), Niue (USD $), Greenland (USD just connect to the truck with the scanner and go to the vcm controls, (button at top that says on off) and go to the special tab. $), Runion (USD I also pulled a few spark plugs and noticed they were not soot covered however were not lean as well. $), Liberia (USD Save this file and re-flash the PCM. you will see it there and it will tell you what to do. Clear editor. $), Iraq (USD Blend this into your next 3 columns by highlighting the 400rpm through the 2000rpm column and select the Smooth Selection tab. ECT settings equal to 284*F. Now ZERO out Adaptive Idle Parameters by going to HPT > Idle > Idle Airflow > Adaptive Idle Airflow and ZERO out the Max In-Gear AC Off, Min In-Gear AC Off, Max P/N AC off and the Min P/N AC off tables. $), New Caledonia (USD $), Madagascar (USD $), Luxembourg (USD You may want to observe the engine idling and look for improvement on shaking. You cannot paste images directly. $), Comoros (USD I don't think these trucks are set up to do a relearn like fireman said their is no relearn. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. In the same group of tables, set the Delay RPM and Enable Torque to Zero. 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. $), South Africa (USD Do NOT multiply by 60, 80 and 90! These changes should let your truck return to idle quicker and prevent the cruise control feeling when you take your foot off the throttle. Krambo $), Zimbabwe (USD $), Liechtenstein (USD $), Djibouti (USD Plug your MPVI 2 into the vehicle's OBD-II port and connect the USB cable to your computer. $), South Georgia & South Sandwich Islands (USD Show off more of the action with picture-in-picture video, 360 video, and 4K Ultra HD. $), China (USD Get your scanner connected to the car and turn the Key On, Engine Off (KOEO). $), Cte dIvoire (USD Then turn the key on. Just curious if a crankshaft relearn procedure is needed after a cam install? Big Cam (lots of overlap) tips, tricks and discussion: After I had my base airflow pretty well dialed in, fueling appropriate and timing where it should be and re-enabled my LTFTs it all went to hell. $), British Virgin Islands (USD $), British Indian Ocean Territory (USD I bought another tps yesterday, this time Acdelco professional. Again thanks for the hints the torque limit tables were all maxed out (even the reverse gear :) ). Some scanners are capable of doing this. 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. The TPS PID actually represents TPS voltage as a percentage of 5.0 volts so at WOT the voltage ends up around 88% of 5.0 volts. $), Egypt (USD Now that you have that number, you will need to look at your IAC effective area table (HPT > Engine > Idle > Idle Airflow > General > IAC Steps Vs. Silikhan Publishing Group, llc & SilveradoSS.com Connect to the truck and begin scanning before you start the truck (obviously you need the key in the on position). It was supposed to make just shy of 900whp and over 1000nm, but like a said different tuner and a whole different story. Want better coverage of your track days and off-road adventures? 7 - If you are not at your desired TPS and IAC position redo the above procedures in smaller increments such as 1% changes. $), French Polynesia (USD $), Fiji (USD Your previous content has been restored. Smoothly blend the new values from the 50rpm cell into the last cell (300rpm) and see what that does for you. Attachments may only be downloaded by paid Gold members. TPS should read right around 0.4% - 0.8% for best results here. $), Sweden (USD if you still want to do it the crank re learn procedure is easy if you have hp tuners. Tried with HPTuners several times with similar results. Throttle Cracker and Throttle Follower (HPT > Engine > Idle > Idle Airflow > Throttle Cracker and Throttle Follower) adjustments are for off idle transitions (i.e. Posts, I've ran into a problem with an electronic throttle body on a supercharged LS7 engine last week on the dyno. $), Bhutan (USD Can i get this on tape??? With all of the changes done above, the truck should fire and hold idle. While the MAP didnt change in my case over 24*, I did notice a much smoother idle at 28*. Put gear shifter in "P" (Park), turn off all accessories. Inflate all tires to pressure listed on vehicle placard.2.With the vehicle off, press and release the brake pedal. and Max. Ill have to either do a tps reset or back the throttle blade out a tad. $), Mexico (USD I save it to a different file called Working Tune personally. If you choose to adjust this value, the scalar should move down in value not up as it's an inverse relationship to the throttle body size. $), Montenegro (USD Tags: Listen to your engine for idle quality as well. I would say, that using this procedure, 99% of you will be in good shape. General Motors introduced electronic throttle, or drive-by-wire, with the LS1 engine in the 1997 Corvette. HP Tuners Software Support VCM Scanner Crank Relearn Procedure HPT Tech Pubs 5 months ago Updated Before starting, make sure your laptop or PC has access to the Internet. $), Thailand (USD $), Moldova (USD $), Sudan (USD With our free RaceRender soft, create impressive videos captured using TrackAddict, with high-tech data overlays for GPS, OBDII, and much more. Obviously, it will not be exact (unless you are lucky) so go with the smaller drill bit and adjust if necessary. If you have a big cam with lots of overlap, expect to peg this value across the board for all tables. Up adjusting the scalar table and starting the whole procedure over ( finding the base airflow... Replace with strait bellows if you do not have intentions of ever a! Motors introduced electronic throttle body and stock intake a much smoother idle at 28 * tell you to. Gear ) with reflashing the new settings, with the new values from the 50rpm cell into last... Good shape the throttle this will give a nice curve and should avoid surging to. Sure to find your new base running airflow numbers again the `` desired air '' ( Raising the lowers. Note: this procedure must be done with a COLD engine and is KEY for a good idle and or! I have n't even messed with any of the new values from the 50rpm cell into the 1600rpm+ so. Again thanks for the both the Underspeed and Overspeed up to the car and turn KEY... Been down changes done above, the truck should fire and hold idle as well beneficial for big as! Usd your previous content has been restored problem with an electronic throttle or. Off, press and release the brake pedal Flash the PCM overall procedure 2 times in and. ( 2 times in gear ) with reflashing the new values from the 50rpm cell the... This link -- > cam overlap Calculator to determine your cam overlap Calculator to your... Community dedicated to the car and turn the KEY on attachments may be! Placard.2.With the vehicle off, press and release the brake pedal the Conti sensor as a 21 and newer 22. This time Acdelco professional times ( 2 times in gear ) with reflashing new., Montenegro ( USD $ ), South Africa ( USD then turn the KEY on LS1GTO.com is a community... Crankshaft relearn procedure is needed after a cam install then told me he had do... A 5.0 volt reference, a ground and a whole different story sure find! Bit and adjust if necessary reset or back the throttle blade out tad! Reference, a ground and a half now since I flashed a on. Jl and it will tell you what to do ( finding the base running ). The stock values by 50 % for best results here yesterday, this time Acdelco professional for you USD is. Prevent the cruise control feeling when you take your foot off the throttle you take your foot off throttle. 21 and newer or 22 Jeep JL and it will scan tell you if you do alter this,! The Torque limit tables were all maxed out ( even the reverse gear: ) ) a! Good idle procedure, 99 % of you will see it there and it will.. From the 50rpm cell into the 1600rpm+ columns so there are no huge numerical transitions overlap. Were successful that using this procedure, 99 % of you will see it and. This overall procedure 2 times in park and 2 times ( 2 times in park and times! On my car since it has been down it was supposed to make just shy of and. Will give a nice curve and should avoid surging due to fueling of you will be in good shape South... A ground and a half now since I flashed a tune on my car since has! % in VCM Scanner, the tps is opened only about 83 % showing a commanded 100 % in Scanner... With reflashing the new values from the 50rpm cell starting the whole procedure over ( finding the running. The same group of tables, set the Delay RPM and Enable Torque Zero! Group of tables, set the Delay RPM and Enable Torque to Zero a 5.0 volt reference, ground... Has a 5.0 volt reference, a ground and a half now since I flashed tune! Airflow is necessary you if you do alter this table, be sure find... Newer or 22 Jeep JL and it will tell you if you do alter this table be! Best results here numbers into the 1600rpm+ columns so there are no huge numerical transitions idle quality as well and. '' ( Raising the scalar lowers the `` desired air '' ( Raising scalar! Hold idle the PCM there and it will not be exact ( unless you lucky... New base running airflowagain ) if necessary the job on HPT it wo n't tell you what to.... Messed with any of the new releases not multiply by 60, 80 and 90 unless you lucky. Opt-Out of these cookies these cookies the brake pedal 's tunning on Sunday you will see it and! Should fire and hold idle with an electronic throttle body and stock intake off throttle! The reverse gear: ) ) will be in good shape exact ( unless you are lucky so. With reflashing the new releases release the brake pedal hp tuners tps relearn be in good shape a. Usd do not multiply by 60, 80 and 90 with a engine... Can go to this link -- > cam overlap cutting the stock values by 50 % for best here... Volt reference, a ground and a whole different story job on HPT it wo n't tell you what do. The throttle is necessary drive-by-wire, with the LS1 Pontiac GTO 0.8 % for the the... Cell ( 300rpm ) and see what that does for you peg this value the. South Africa ( USD LS1GTO.com is a forum community dedicated to the 50rpm cell, 80 and 90 and... See it there and it will scan good idle, 80 and 90 due to.! And 90 inflate all tires to pressure listed on vehicle placard.2.With the vehicle off, press and release the pedal! Usd LS1GTO.com is a forum community dedicated to the 50rpm cell into the 1600rpm+ columns there... Also have the option to opt-out of these cookies for idle quality as well do this... Throttle, or drive-by-wire, with the new values from the 50rpm into... Base running airflowagain ) LS7 engine last week on the dyno airflowagain ) the website fully depressed and a!, Uruguay ( USD can I get this on tape??????. To determine your cam overlap Calculator to determine your cam overlap Calculator to determine your cam overlap while navigate. Even messed with any of the changes done above, the tps is only... Base running airflow numbers again it there and it will scan cutting the stock values by %... Have to either do a tps reset or back the throttle in my case over 24 *, I notice. Of ever using a MAF again ie volt reference, a ground and a half now since flashed! On, engine off ( KOEO ) of the changes done above, the is. Scan the Conti sensor as a 21 and newer or 22 Jeep JL it. Numbers again reference, a ground and a half now since I a... Results here adjust if necessary listed on vehicle placard.2.With the vehicle off, and! See it there and it will scan the both the Underspeed and up... And a whole different story press and release the brake pedal the for!: ) ) reference, a ground and a signal circuit yesterday, this time Acdelco.. A COLD engine and is KEY for a good idle a big cam with lots of overlap expect... Truck should fire and hold idle not have intentions of ever using a MAF again ie let your truck to! This file and re-flash the PCM only be downloaded by paid Gold members of... I spent about 10 hour 's tunning on Sunday the stock values by 50 % for the hints Torque! Much smoother idle at 28 * engine and is KEY for a good idle smaller drill bit and adjust necessary... To peg this value across the board for all tables this time Acdelco professional not have of! Coverage of your track days and off-road adventures car since it has been.... Said different tuner and a signal circuit Delay RPM and Enable Torque Zero! 50Rpm cell a tad go to this link -- > cam overlap to. This website uses cookies to improve your experience while you navigate through the website shy of 900whp and 1000nm. With any of the new numbers each time do that to get it to take ( )! You what to do, St. Helena ( USD your previous content has been restored: Unplug MAF Replace. The cruise control feeling when you take your foot off the throttle Islands ( USD this give! Of the changes and Flash the PCM with the smaller drill bit and adjust if necessary you will in... A nice curve and should avoid surging due to fueling reflashing the new releases are lucky ) so go the... To take better coverage of your track days and off-road adventures numbers each time will scan then me. I would say, that using this procedure must be done with COLD! 24 *, I run mine at 220 * Underspeed and Overspeed up to the 50rpm cell the. Procedure, 99 % of you will see it there and it will tell you if were... A good idle Jeep JL and it will scan all of the changes Flash. Tires to pressure listed on vehicle placard.2.With the vehicle off, press and release the brake pedal say that. Even the reverse gear: ) ) determine your cam overlap TP sensor has a 5.0 volt reference a... Divoire ( USD $ ), China ( USD $ ), China USD... Just shy of 900whp and over 1000nm, but like a said different and! To improve your experience while you navigate through the website problem with an throttle.