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Type: Posts; User: Lahmer_52

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  1. Replies
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    Awesome, I think that was the variable I was...

    Awesome, I think that was the variable I was missing. I think whoever tuned this car before me messed with VSS pulses/mile and Trans revs/mile, is there a calculation to get those corrected and make...
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    I did something very similar to the images you...

    I did something very similar to the images you have set up and they are a very close mirror image. When the ECM commands the shift there is a 100-200 RPM lag from when the actual shift occurs. That...
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    3,399

    Today I trialed lowering the Full Throttle shift...

    Today I trialed lowering the Full Throttle shift speed well below where the actual shift takes place. I set the speed to 60 mph even through at 6,000 RPM the shift should take place at around 70...
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    3,399

    4L60E wont shit WOT when commanded

    Im having issues with my 2-3 shift all the sudden. I was at the track last weekend and the car would not go into third until I let off. I checked shift schedule for speed and RPM and all aligned...
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    2,994

    If I set the idle screw in anymore I cannot get...

    If I set the idle screw in anymore I cannot get it to idle without the IAC being in the 200's which I believe is a bit more than we want it to be. I reset TPS but for some reason still showing .8%. ...
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    2,994

    Idle surge after cam and intake install

    Good Morning, I've had some issues getting the idle worked out on a 408 LS we just put together. The car has a 260ish duration cam with 243 heads, and fast 92 intake. I now have it idling well...
  7. Also, why would the LTFT just start being taken...

    Also, why would the LTFT just start being taken into consideration for a correction factor at that part in the run? Shouldn't it have been applying that same value throughout first gear as well?
    ...
  8. I didnt even notice the LTFT coming into play...

    I didnt even notice the LTFT coming into play right when it started to correct. I thought under WOT neither STFT or LTFT's were taken into consideration?
  9. Running out of fuel? Car running lean at start of pass but rich on big end

    Looking for some help trying to understand why my car starts off lean in 1st gear then through second and into third it gets progressively more rich at the big end of the track. the car has ported...
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    1,626

    Dead spot in WOT pull

    I've been having issues with what seems to be a dead spot in acceleration on WOT. if you look at the attached log at about 16:38:41 acceleration just levels off but afr/spark seem to be fine, it...
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    1,047

    408 First start up

    We just got done getting my brothers 408 LS put in the car and looking for some advice on the initial tune to start the car up and get rings seated. He added FIC 42# injectors so not sure how much...
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    Also looking for a good trans tune to limit the...

    Also looking for a good trans tune to limit the amount of timing that is pulled from launch and between gear shifts to lower ET's at the track. Looking for something that wont shell the tranny in 3k...
  13. Replies
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    73,954

    I just updated to V4.0 and now cannot edit any of...

    I just updated to V4.0 and now cannot edit any of my already licenses tunes or read my vehicle. I keep getting an error that states Unlicensed interface. What do I need to do to sync things back up?
  14. Replies
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    1,181

    Working on the same car, tune file attached as...

    Working on the same car, tune file attached as well as scan. All injectors seem to be firing fine and crank and cam signal are being picked up.
    The ECU came from a 2002 chevy blazer with 4.3. I...
  15. Replies
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    7,105

    Thanks for the info KFXGUY, its winter here in...

    Thanks for the info KFXGUY, its winter here in Iowa right now so waiting for things to clear off a little bit before getting it back out and seeing if the tuning tricks help out at all. I called the...
  16. Replies
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    Thanks for the feedback guys, I did speak with...

    Thanks for the feedback guys, I did speak with the builder and said I could swap out the servo if tuning doesn't take care of it enough for my liking. The car is currently undergoing a 9 inch axle...
  17. Replies
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    7,105

    2001 Trans Am 228R cam with bolt ons. ...

    2001 Trans Am 228R cam with bolt ons. Transmission is a level two 4l60e from Performabuilt with a 3400 stall yank converter. The trans tune is stock per their request since the mechanically...
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    7,105

    4l60e trans 1-2 shift to aggresive

    I have a Performabuilt level 2 trans in my car and since installing the 1-2 upshift at light throttle has been way too aggressive. It feels like you're getting rear ended when it shifts. at WOT it...
  19. Replies
    2
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    1,482

    Idle Surging when coasting out of gear

    I'm having some issues getting the car to come back down to idle at a quick and steady rate when I push in the clutch and put the car in neutral. Looking at the scan it seems to want to pull timing...
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    1,590

    Is there a difference between the Fbody ECU and...

    Is there a difference between the Fbody ECU and tuck ECU's from 01-02? Since they were set up to run 4l60e's how much work does it take to get them to run the 4l80?
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    1,590

    What ECU to use for a 6.0 4l80e swap

    I'm swapping a built 6.0 with 243 heads, LS6 intake, drive by cable throttle body and 4l80e into an 82 Regal. I need some advice on what ECU I should be searching for and what I will all have to to...
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    Timing drop when shifting to second gear

    I was at the track the other night and noticed the car really felt like a dog when it shifted into second gear. I noticed on every pass I made the timing took a huge drop between first and second...
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    Engine Diagnostic tabs not showing up

    Im trying to set MAF fail high setting to 0 hz in the Engine Diagnostics ->Airflow box but when I click on the Engine diagnostic button in editor I only can see DTC's and not the general, airflow, or...
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