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

PCM Tune

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Old Jun 29, 2010 | 10:31 AM
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Default PCM Tune

First off VATS takes it in the mouth and I want it gone for good, I'd also like to tune out all the unnecessary stuff, like the rear O2's. But I don't feel that my modification calls a hardcore tune(I'm also poor), so I'm planning on just getting a mail order tune.

So my question is can I use any pcm from any 95-97 V8 FBody and tell him what I want, or do I have to send him one out of a M6 ans same exact year?
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Old Jun 29, 2010 | 11:48 AM
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Reprogramming only removes half of the VATS function. The need for the key pellet resistance can only be remedied by a resistor bypass.

Even a mail order tune should net you some HP on a stock engine.

PCM depends on whether you want to keep it OBD-II (96-97 PCM) like you have or swap to OBD-I (94-95 PCM that will work with your harness). If you get a complete reflash, it won't matter to the tuner what transmission the PCM was used with-you just tell him what you want it to be.
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Old Jun 29, 2010 | 12:01 PM
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Don't mean to hijack this thread but would I be able to go obdII on my 95 z28 with a 96-97 PCM?

IIRC the 95 has the obd II style port.
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Old Jun 29, 2010 | 03:17 PM
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Originally Posted by shbox
Reprogramming only removes half of the VATS function. The need for the key pellet resistance can only be remedied by a resistor bypass.

Even a mail order tune should net you some HP on a stock engine.

PCM depends on whether you want to keep it OBD-II (96-97 PCM) like you have or swap to OBD-I (94-95 PCM that will work with your harness). If you get a complete reflash, it won't matter to the tuner what transmission the PCM was used with-you just tell him what you want it to be.
I'm going to keep it obd-II...I saw that mad tuners has an exchange program...they send me what I need and I send them my old one...easy as pie. I'll prolly stick a resistor in that bad boy one day this week...
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