LT1-LT4 Modifications 1993-97 Gen II Small Block V8

Weird????

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Old Jun 19, 2011 | 05:22 PM
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Well today I went and switched the PCM from my OBD1 thats in mine to the Original OBD2 just to see if my tune would happen to be the problem with my car and when i drove it I had all my gears with the OBD2 and my OBD1 didn't

This have anything to do with the tranny or is my OBD1 tune just THAT off?????


Im so lost
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Old Jun 19, 2011 | 06:01 PM
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Every thing has been in the tune put a stockish tune back on it that had an A4 tuned into it and shifted fine and everything was fine
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Old Jun 19, 2011 | 06:37 PM
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so you fixed the problem or what?

I would say if the car works with the obd2 computer then tune that one.
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Old Jun 19, 2011 | 07:59 PM
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got it working decent with the OBD1 now. Its weird i copied all the tables that i thought pertained to the tranny too the base tune that was on the PCM when i got it and there was no 1st gear and such

I found a stock tune and copied all my spark tables and everything needed and didn't touch the tranny and I have 1st through 4th still a lil shaky on the tune. Going to keep asking around and see how close i can get it and see If i can get it right if not ill have someone professionally tune the computer (Moe Horsepower PCMforless Solomon...etc)

Last edited by Lawhead; Jun 19, 2011 at 08:44 PM.
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Old Jun 19, 2011 | 08:37 PM
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ohhh god, you related at all to killagt?
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Old Jun 19, 2011 | 08:46 PM
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Originally Posted by Badazz 97 TA
ohhh god, you related at all to killagt?
Not 100% what this has to do with tuning a PCM, Telling me what im doing wrong, or being helpful in anyway?

Not sure what your trying to accomplish here please enlighten me to what your point is. I'm all ears
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Old Jun 19, 2011 | 08:52 PM
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i didnt think it was illegible at all... but this might help you understand
https://ls1tech.com/forums/lt1-lt4-m...g-killagt.html
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Old Jun 19, 2011 | 09:35 PM
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Originally Posted by Lawhead
got it working decent with the OBD1 now. Its weird i copied all the tables that i thought pertained to the tranny too the base tune that was on the PCM when i got it and there was no 1st gear and such

I found a stock tune and copied all my spark tables and everything needed and didn't touch the tranny and I have 1st through 4th still a lil shaky on the tune. Going to keep asking around and see how close i can get it and see If i can get it right if not ill have someone professionally tune the computer (Moe Horsepower PCMforless Solomon...etc)
That is why we said to copy your spark/fuel tables from your tuned computer into a stock A4 tune, instead of trying to copy the stock A4 tune's tranny tables into your current tune :p.
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Old Jun 19, 2011 | 09:50 PM
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Originally Posted by Puck
That is why we said to copy your spark/fuel tables from your tuned computer into a stock A4 tune, instead of trying to copy the stock A4 tune's tranny tables into your current tune :p.
At first i was just unsure how to copy the tables over did a lil messing with and it some research and found out how stupid easy it was!! thanks for everyone and the help its "almost" there. Pretty sure I'm going to pay to get a tune so I don't mess anything up in the learning process
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