LT1/LT4 Tech 1993-1997

Quick question PCM

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  #1  
Old 11-04-2006, 05:51 AM
94Ztwo8's Avatar
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Default Quick question PCM

Im not sure if this is a stupid question i dont know a whole lot about camaros, but what does it exactly mean to have the pcm tuned and where can i got to do it.
 
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Old 11-04-2006, 11:30 AM
uncle bill's Avatar
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Default RE: Quick question PCM

I believe that Your '94 has a replacable chip. The '96 and up cars with OBD 2 & 3 have a programmable PCM.
 
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Old 11-04-2006, 02:42 PM
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Default RE: Quick question PCM

Actually, up to 93 the PCMs were OBD-1 with replaceable MEMCAL chips. The 94s & 95s are sort of in-between, using OBD-1 PCMs that can be reprogrammed. The 96 and later use OBD-2 PCMs which are also reprogrammable. The ones with replaceable chips you need to remove the chip and reprogram it with a chip burner and a PC. The later ones, can be reprogrammed from the ALDL diagnostic port, using a PC with the proper software.
 
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Old 11-04-2006, 03:51 PM
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Default RE: Quick question PCM

If you can find a shop that does it you can get your car tuned while on a dyno. If you need a chip there are some shop who can burn you a chip with the best set up from the dyno.
 
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Old 11-04-2006, 04:59 PM
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Default RE: Quick question PCM

What will having the PCM tuned do for my car. An what does OBD- 1 mean?
 
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Old 11-04-2006, 06:42 PM
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Default RE: Quick question PCM

The PCM is the power control module and it controls the spark timing and fuel delivery to the engine, among other things. OBD-1 means On Board Diagnostic, version 1. It is how the computer (PCM) controls the engine, processes and displays troubles.
The PCM is set up by the factory to handle the engine it was programmed for. If you modify the engine, it will need more or less fuel, and more or less spark advance than the stock engine it came with. Tuning the PCM will provide the proper parameters to handle your mods, and get the best performance out of the engine.
 
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Old 11-04-2006, 08:29 PM
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Default RE: Quick question PCM

Should this be done for every mod and can i get it done on the dyno.
 
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