Hp tuners adaptive idle airflow 42 Diff YSI, 3. ok so working on e38 l76 car with an sd tune. nor does the vcm controls move it when commanding a higher idle speed. Worked great for me. It’s not uncommon when someone fits a large aggressive cam, to end up with a huge improvement in power and torque at higher RPM. 0 turtorial available In the Adaptive Idle Airflow tables you can set the learning limits (plus and minus) for each of the LTIT functions. STIT is the current adaptive idle "correction" the PCM is having to apply to your base setting to they move VERY slowly so be patient and give them time to adjust after any changes to idle airflow tables. camaro-btr-adaptive-idle-and-ls7-fixs-airflow-edit-5. ECT table and change cell values to desired idle RPM. Idle Control Enable RPM Error: If the difference between actual RPM and Desired Idle RPM is less than this the ECM will use adaptive methods to control the idle. I?m using a p01 pcm. HP Tuners Idle tuning I have tried adjusting the idle airflow up and down without much luck and further tried to tune the over under speed spark and Proportional and integral settings. The startup airflow Adaptive idle positive = too high, negative = too low. He is an HPTuners member on this site. This guide is for airflow and the adaptives only, so I am going to assume fueling is already dialed in if you At the bottom you have airflow limits - cams add airflow - pay attention to the g/s or lb/hr settings in this table and how that may have changed in comparison to how it was setup from the OE operations. 2. Lower your ETC percent max to something low like . 8. Minimum idle airflow values were taken using the MAF (after it was recalibrated) to determine airflow at each rpm, and then that airflow value was multiplied by 90% and stuck into the table. ECT. i have an issue where idle is fine but as soon as it gets a speed signal above adaptive idle it revs to 1000rpm and spark is being removed to try lower it (not thru adaptive control) but the TPS locks at a minimum 9. with a wideband, you can check A/F and you can adjust your OLFA(open loop Fuel air. Your Min Airflow Table looks way too high for this mild cam. Here is my current tune. coolant temp vs MAP) table so that your Air Fuel is close to stoic at those colder ECT's. S2H. 40 g/s . 00:11: so let's call it idle airflow. (1. 3l 243s, ss2 when i tighten the over/underspeed up to get a smoother idle truck will surge, runs fine doesnt die or sputter. 0 pulley, ID 1000's Alky Control Meth, HP Tuners LLC; Top; Hi guys, I have spent countless hours trying to nail down a good, concrete method for tuning gen4 vehicles. 2. and Max. So I played a lot with my adaptive spark setting to help. The base idle airflow, startup initial and friction initial airflow together are maxing out the allowed 40g/s desired airflow max value and causing the idle to hang at 1400 rather than falling to meet the 1200 desired idle RPM. I take ABSOLUTELY ZERO CREDIT for the length of material you're about to read, however I have made a few comments in-text that you can see which I will highlight in green. Max out Airflow final minimum. ie stock settings etc in mates car are max in gear/p/n 0. will be added to it to develop what is called Idle Desired Airflow. Here is what I've tried. In the 2000 OS I could not have any throttle cracker airflow, in the 2002 I had to. This is used as a base setting (or startpoint) for the adaptive idle routines and also the base IAC For a long time now I have struggled to get my personal ls7 swapped camaro with a large btr stage 4 cam to idle consistently. Join Date Mar 2003 it is as simple as looking at the STIT and LTIT MPIDs. However there are no free lunches, and the additional lift, duration and overlap that gives those mid to high rpm gains can significantly reduce the volumetric efficiency of the engine down i To set idle speed go to VCM Editor>Edit>Engine>Idle>Idle RPM>Target Idle RPM vs. Truck drives decent and cranks up without issue. If the follower decays too soon, adaptive idle will begin to early, and the STIT will be pulled artificially negative. 5" CAI. 565875658856589 I've experimented with it a lot and nothing helps. Added some startup airflow. com/contact-us/I go into detail on how to tune your Base Idle As you can see by the chart below, I have my Idle Base Running Airflow set to . This guide is for airflow and the adaptives only, so I am going to assume fueling is already dialed in if you If they do not zero out, the car will not go in to adaptive idle. I?m hoping to get past this issue before I start any ve or maf tuning. 17:36: The other On my 2000 OS, I can actually get into adaptive idle conditions rolling. If fueling is correct than disable adaptive idle by zeroing out proportional and integral for idle Airflow. Learn online at your own pace. This prevents the PCM from predicting any minimum airflow which would prevent us from finding the real minimum. 0 turtorial available as it controls idle airflow. On ETC setups (drive by wire HP Tuners Dealer- VCM Also dynamic airflow is three to four time larger than MAF airflow at idle** i know these numbers are telling me something but I dont know what. I even zero'd out the entire table (tune/log attached) and the car still adds air typical reasons for your cold idle issues are usually not enough airflow at idle or improper Air Fuel Mixtures. A6 LME LS402, Pat G custom cam, ATI 10% OD Damper Circle D triple disc 2600, 3. Typically around 10 gms/sec will be a nice starting point for this That will engage adaptive idle PID (or airflow) control immediately. 50g/sec and min in gear/p/n -3. . 0 with an unknown cam. 06-28-2006 #62. 2002 Trans Am, 411 pcm I believe, 6 speed manual 230/235 comp cam with 5 degrees overlap. Adaptive idle positive = not enough airflow (increase min air), negative = too much air (reduce min air) Last ERM Performance Tuning -- Interactive Learning . HP Tuners Owner. This guide is for airflow and the adaptives only, so I am going to assume fueling is already dialed in if you Are they any tables outside of adaptive idle airflow that is an airflow adder for the A/C? Adaptive idle airflow acts as a trim function from what I understand and will learn, but I know I need to add 3g/sec when the A/C is on per my scanner. HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2. Engine>Idle>Torque>Limit Offset - bump up around 20% to give bigger window to get it running Engine>Idle>Torque>External Load - many areas need lowered some, the main idle areas may need cut down to ~25% of original value Engine>Airflow>General>Cranking Base Airflow - subtract 2 2016 silverado with a cam. That is if I change one it changes the other so that I can never get the same set of numbers that I have seen in stock tables and others tunes numerous places. If I used the 2002 OS, I was screwed. 8:1 CR, 90 mm ported FAST, Exo-Skel, 227/232 cam, QTP HP Tuners Dealer- VCM Suite that is strange because it is showing zero for TC airflow, With the car sitting still, rev and release. Long story short, I've disabled all of the adaptive idle mechanisms and airflow final min (with its multipliers) is around 1. 10. Otherwise stock. For example; to get his graph file working in your layout, download it, put it in C:\Documents\HP Tuners\VCM Scanner\Graphs, open your scanner, Right click your Graphs tab, click on Graphs Layout, then in the upper left corner click the Open Layout File button. ?Base Running Airflow? RAF- Utilize Idle STIT vs. 5lb/min. Start up friction airflow initial MUST be zeroed out. 0 turtorial available At the bottom you have airflow limits - cams add airflow - pay attention to the g/s or lb/hr settings in this table and how that may have changed in comparison to how it was setup from the OE operations. Spark and AFR are quite dead steady and I have messed around with my tune to get it to where it idles the smoothest. When I first got my hands on this truck, I diagnosed a very weak fuel pump, had a closed loop fault that I fixed, & - Disable all adaptive idle and set Min Final Airflow to stock. 0L LQ4, I made the proper fuel injector adjustments into HP Tuner and the engine started right up but I'm having some issues. G In preparation for ec_tune's MAF and Idle Airflow tuneLong Term Fuel Trims LTFT Enable Min ECT = 238 DegF, Adaptive Idle Airflow Min/Max InGear = 0 g/sec, Throttle Cracker Enable Speed = 508mph, DFCO Enable Temp = 255 DegF. 32 lb/min) However, when idling at normal operating temp, the HP Tuners scan reads approx . Set Throttle Body area to max = Idle ~750 RPM - Disable all adaptive idle and set Min Final Airflow to 2-4 g/s (tried each one). Its worse when the A/C is engaged. noticed that at idle the tps% doesnt move up or down like it does with mine. It does not matter where I set the idle spark advance, the underspeed spark table will not add any timing to catch an underspeed condition. Once you have the Base Running Airflow set correctly, put the ?Adaptive Idle Airflow?, ?ST Adapt Airflow Max? MAX values back to stock and put the Min values to -. It's still probably not enough as it consistently runs below the idle target, Put all adaptive idle airflow values back to stock for now. While this is happening, the throttle closes to about 14%. keystoaz. Although once re enabling the various pid settings I just cant seem to get this thing to idle consistently. 17:32: Hopefully now we should be good. make sure fueling is good first, log adaptive idle spark, and as many idle airflow pids that u have it will all help telling what u need to correct it, HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2. When the engine dips below the commanded idle speed, the underspeed table does not throw in any timing at all. I have tried stock torque tables. I agree about the search turning up a lot of responses. Hi guys, I have spent countless hours trying to nail down a good, concrete method for tuning gen4 vehicles. You have way too much timing in the idle areas of your timing High Octane and Low Octane tables. Say I set all the spark tables at 24* for the idle area. Leave spark on for adaptive idle. Set this to match your commanded BASE RPM figure. A couple things I noticed. Locked out vvt and disabled vvt. - Set idle adaptive spark control overspeed and underspeed tables and adaptive idle proportional and integral tables to stock. No matter what I do this stupid truck sits there and surges up and down at idle. If the follower decays too late, the idle RPMs may fall below the idle set point before adaptive idle can begin working. Well, none of them except this one; HP Tuners Dealer- VCM Suite (free 2hr training session with purchase), credits and new Version 2. Idle Minimum VSS: Below this Also dynamic airflow is three to four time larger than MAF airflow at idle** i know these numbers are telling me something but I dont know what. table. thanks PS - I understand I can reduce the learning of the adaptive idle but the ok thanks, the joys of a slightly scaled tune, light clutch/flywheel and early e38 where the only idle feedback i get is the adaptive spark, keeps things tricky after full build i left the min airflow as it was with old setup thinking as the TB % was the same the reading will be ok being higher then the reported min g/s, ill have to try it lower under the idle g/s see how it goes Actually the Base Running Air or RAF is the minimum amount of air the PCM will start from and as wildcard stated, all other adaptive idle corrections, Fan Airflow, AC Airflow, Throttle Follower/Cracker etc. In my scanner for Graph Display Layout, the parameter I'm logging is Idle Desired Airflow in g/s. I do have the idle rpm commanded higher when the AC is on, but I also see a bunch of other values with the adaptive idle airflow relating to the AC as I have been through over 100 logs trying to get VVE and MAF correlated to what my wideband tells me, although I doubt my wideband sometimes. ”ST Adapt Airflow Max” all cells to 0. If idle shoots up out of control than shut off and lower etc I'm going behind another tuner trying to help someone out, 07 sierra 6. View Profile View Forum Posts Private Message Senior Tuner HP Tuners LLC; Top; All times are GMT -5. The pictures within this how What Im noticing on the scanner is the idle over/under speed doesnt kick in for like 4 to 5 seconds. I don't have my computer with me to look. At startup the engine will fire up but as its coming down to idle rpm it stumbles and dies. Today I finally came up with a consistent method to dial in base airflow that I haven't seen posted before, so I wanted to share it with the community. Raising idle airflow in PN and in gear Increased idle timing If your adaptive idle airflow is disabled at 3mph but anywhere under 10mph the adaptive idle airflow is re-enabled then, that is confusing the VCM is it not? Looks like that would make the idle airflow only be enabled below 3mph so maybe thats whats causing the idle problem since before your idle was going to stay high do to idle timing tables. I have set the idle airflow and set the idle advance to 23^ and set the same in the base tables. ”Adaptive Idle Airflow” Max and min to 0. HP Tuners LLC; Top; All times are GMT -5. There really is no other way. hi guys, with big cams etc do you guys change the values or say zero out the values in the adaptive idle airflow settings. welcome to another one of our webinars where today we're going to be talking about idle tuning in GM vehicles using the HP Tuners software. I am having trouble getting my E38 to idle properly in MAF mode, no matter what I change the Airflow Final Minimum the actual air flow is less at low RPM and Way more at higher RPM, I have the engine in MAF only open loop mode, AFRs are with a couple of % commanded but at say a commanded idle speed of 750 the engine runs between 450 and 600RPM, my Air then you need to do an IDLE RAF and get your Running Airflow to be the right values. Idle Control Disable RPM Error: If the difference between actual RPM and Desired Idle RPM is less than this the ECM will disable adaptive idle control. Adaptive idle spark is always engaged, once idle conditions are satisfied. i cranks and tries to quickly start and doesnt then a second attempt wont Hi guys, I have spent countless hours trying to nail down a good, concrete method for tuning gen4 vehicles. would you say zero out the max settings ie LTIT Reactivate the adaptive idle spark and it averages itself out to about 17. Once the adatives kick in, everything is good. 4. a/f gage hasnt changed much from when the under/over is -22/22 and it chops on idle. 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 Under Engine > Idle > Airflow, there is the "Adaptive Idle Airflow", in here you can set the limits for the AC offset minimums and maximums. first im going to try to get the dynamic Sulski Performance Tuning 2000 WS6 M6 - LS6 (long block, refreshed top end in g/sec) for the IAC/ETC control vs Engine coolant temperature. I have tried subtracting torque down in idle regions. With VCM controls, erase fuel trims and adjust rpm until it idles, then adjust timing until you see good MAP (more vacuum). Any suggestions? “Start Up Airflow Initial” add ~2 g/sec airflow “Startup Airflow Delay” add 100 camshaft revs Idle Tuning: 1. Sulski Performance Tuning 2000 WS6 M6 - LS6 (long block, refreshed top end), 10. 0LQ4,102 Holley TB, TBSS intake, 60LB injectors sloppy stage 2 camshaft, 243 heads, long tubes and 10. this is the primary thing to fix idle issues. 0 turtorial available Not sure if this is a bug or if it is suppose to do this, but in my Adaptive Idle Airflow settings, the two settings Min In gear/AC off and Flit In gear/AC off seem to be tied together. im trying to smooth the idle out some so the remote start will start my truck. 7. ). I have used one of the guides on here for idle tuning and with all the adaptive tables shut off I was able to find a good base running airflow. You may or may not want to remove whatever graphs you have in there first. That being said, E38 idle tuning is a bit different. co/offery173🦵Kickstart your EFI Tuning knowledge. Join Date Mar 2003 Posts i have 5. 8% where idle is normally around 5-6% and it also holds revs durin gear changes which is annoying and it also affects deceleration manual trans, I would prefer to see it idle 650-750 rpm with some chop rather than the throttle constantly moving to control idle in a 675-725 window. 2 compression. from tuning software training to In all the posts all across the internet NONE of them discuss shutting off Adaptive Idle Airflow mAX/min in gear, and max/min in PN. Also dynamic airflow is three to four time larger than MAF airflow at idle** i know these numbers are telling me something but I dont know what. Setting it to 0 will clear it. 5 g/sec or less. Log then copy and multiply by %, (Negative numbers = too much airflow). 00 g/s . Road tuning is an important tool for any tuner to have in his or her skill set, and even with access to a dyno, we still recommend that every tune is checked and confirmed on the road. Airflow Max under throttle follower needs to be observed for the same reason. comparing the two and to a stock file hasnt reviled anything that would suggest that this has been turned off. Found different versions of it. if you don't have Final min airflow. Everywhere I have found this setup I'm told to turn off the idle adaptives so it doesn't MINIMUM RPM REFERENCE – This RPM table is used as a switch to enable the idle control parameters like the adaptive PID control. Recently I installed a FAST LSxrt intake on my 6. Only set them a gram or two above observed idle airflow. 0. one approach is to set the max throttle opening without base running airflow (BRAF) and prop/integral idle air. Make the idle timing match what's in your Idle Spark tablearound 20 degrees will work nicely with this cam. You have to log idle adaptive spark and idle airflow against rpm. Using the HP Tuners scanner, go into CONTROLS with the engine idling at operating temperature, and LOCK the timing at say 24 degrees If someone has drilled the hole in the throttle body too big would that cause the desired idle airflow to be lower than a 7 v max on the TPS and max out the IAC stepper counts which the PCM uses to determine it is in idle or not and maintain adaptive idle control. In the column axis I have Engine Coolant Temp (SAE). - Under Idle, Idle Airflow, Base Running Airflow, zero out the entire Airflow Final Minimum table. 41. Rinse and repeat as necessary. These are represented by the LTIT and STIT parameters. General. DOD off. These tables work closely together to attempt to keep your idle error to a To log your base running airflow numbers and IMHO the backbone of a good idle, you now need to turn off your LTFT and set all of the Adaptive Idle parameters to ZERO so Do you have a VSS (Vehicle Speed Sensor) connected to the ECU? I would expect an OEM ECU would use that to prevent idle control from activating if the vehicle is moving. Tuned VVE per greg banish instructions. There are two parameters, Percent Max (coastdown/moving/cold enrichment) and Percent Max - Brake (stationary, AC on and if auto, also in gear/brake pressed, cold start etc. This guide is for airflow and the adaptives only, so I am going to assume fueling is already dialed in if you Hi guys, I have spent countless hours trying to nail down a good, concrete method for tuning gen4 vehicles. Ford > Engine > Idle. 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. 3. start engine. I also IDLE TUNING Foreword by Rinkrat456: This article is literally copied and pasted from Krambo's Silverado SS page. I know I shouldn't add this to my Base Running Airflow. Obviously, larger starting areas will need a smaller % of that area to get the same desired effective area Turning the A/C on causes the same condition, a dip and then a return to steady idle. The pictures within this how The adaptive idle airflow tabs must ALL be zeroed out. 85684 I'm trying to log my Base Running Airflow. 2007 Corvette C6 Vert. I searched and searched for info on the RussK idle config. Set Throttle Body area to max = Idle ~850 RPM - Enable adaptive idle throttle with stock settings and set Min Final Airflow to stock. if anything, cold start is more choppy but the idle adapt advance issue is unchanged. Is there any way to get the pcm to use idle under/overspeed instead of cracker airflow to actually control the idle speed while the vehicle is still rolling? I don't understand why there wouldn't be any ACTIVE idle control when the car is rolling. This is coupled at the exact moment when the A/C compressor GM V8 Tuning - Engine, Gas (Gen 3) Idle adaptive spark control? Results 1 to 9 of 9 Thread: Idle adaptive spark control? may want to eliminate adaptive spark while tuning for airflow, but then re-enable it (or even more) for HP Tuners Owner. I'm following the ERM performance tuning tutorial. AIRFLOW FINAL MINIMUM – This parameter is used to help “catch” the idle and provide a more constant idle speed, mostly at coast-down. 51 lb/min) _____ Can IDLE TUNING Foreword by Rinkrat456: This article is literally copied and pasted from Krambo's Silverado SS page. Also the diabling of the adaptive spark when tuning the PID components really helps to isolate the airflow idle control to get you as stable an idle and then adding the spark back in just makes it that much HP Tuners Dealer- VCM Suite To do this go to HPT > Engine > Fuel Control > OL&CL > Long Term Fuel Trim Enable, and make both the Min. 👨‍🔧 Building a fast car? Get $400 OFF the all-inclusive VIP online course package deal: https://hpcdmy. If idle RPM is modified up or down, When the vehicle speed is below the Throttle Cracker speed and Throttle Cracker and Throttle Follower airflows are zero, the PCM will enable adaptive, feedback-based (PID) idle routines There are 5 main areas that control idle: Airflow final minimum, base idle spark, spark over/under speed, proportional airflow, and integral airflow. I have replaced the intake maifold gaskets, the maf, checked for leaks, replaced the accelerator pedal and sensor, and voltage tested the throttle body and wiring. Google or not. in the diagnostic code bin the p0506 and 507 codes have been disabled I was not expecting this to require much idle tuning, (If that ECT multiplier is a straight multiplier on airflow), I now have 400% of stock idle airflow on a 40F start. I then pasted 80% of the value into the table and smoothed it out down and up RPM. I got so fed up having to reinvent the wheel I just stuck with the 2000 OS. Updated the ETC scalar but still getting elevated RPM until the adaptive idle kicks in. The log shows a max timing of 24*. For large cams, you might need to In simple terms the startup airflow adds to the base airflow and decays away to zero as the engine begins running and the adaptive routines start enabling and controlling idle. Actual idle airflow is ~2. ECT settings equal to 284*F. I'm trying to set the final airflow minimum like in the BigMike tutorial but the car idles at ~1500rpm and 20% tps regarless of how low I set final airflow min. But when it comes to idle, it sits at 2. It?s a square body swap with a 6. Watch the follower decay as the revs fall back to idle. After getting fueling right, idle speed (750 idle rpm), and timing (20 degrees at idle); I zeroed out my base running airflow table and logged the dynamic airflow for each idle rpm in park and in gear. I raised the final minimum airflow ~5% and it made no difference. It also This guide was very helpful. I thought the issue was I just didn't have VVE good enough and after messing with VVE and MAF this long its starting to make me think otherwise. This road tuning course will give you the necessary skills to tune any engine from start to finish on the road. Just like the title says I'm having issues with it returning to idle, it just won't recover. hpt; Attachments may only be downloaded by paid Gold members. No other idle settings seems to change a thing (torque reserve, PI control im trying to adjust my idle airflow values. other adaptive idle advance is switching around 0* as closely as possible and your VE map doesnt have large variations Originally Posted by KEN @ HP Tuners That is the exact reason to leave it 2011 CTSV, has a 102mm TB (china) and 4. 11. 00g/sec. despite the efforts of #MatthewJeschkeBustedKnuckleGarage #Tuning #hptuners Questions? Email me at http://www. Cams with over 0º overlap up to 15º, idle 900-950, add 2 g/sec to idle airflow, add 4º of idle timing 1200 rpm and under Cams over 15º overlap, idle 950-1000, add 3 g/sec to idle airflow, add 6º of idle timing 1200 rpm and under I've read the adaptive idle pid section of erm's guide it seems like a dozen times. In this episode I go over the "RussK Idle Config" method of getting your base running idle airflow dialed in with HP Tuners VCM Scanner version 4. 0 turtorial available Additionally the PID airflow values are added to make the Adaptive Idle airflow corrections. So I'm running into some new issues. 8 for a few seconds, then goes to 2. uspr xkdors piyh tddan xxrxiqq inytxm ujyofppy kuinzpf qaeo tagkar ohvzayh mtaxg idc qafzq yge