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Old 03-28-2009, 03:59 PM   #4 (permalink)
cfg83
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Join Date: Dec 2007
Location: Southern California
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1999 Saturn SW2 - '99 Saturn SW2 Wagon
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90 day: 40.49 mpg (US)
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faberfiber_civic -

Quote:
Originally Posted by faberfiber_civic View Post
I am wanting to put obd1 in place of my obd2 because the obd2 I have heard theres a lot of rectrictions and the obd1 seems to have more available, also more tuner freindly.
I know what you mean. I think I am lucky in the sense that my car is a 1999 with basically "circa 1996 obd2" firmware. I've heard that newer ECU/PCMs are just "too smart for their own good" when it comes to ecomodding, and will fight with you. The older stuff can be "tricked" into getting better MPG.

The drawback for me is that there is no real "tuner culture" for my Saturn S-Series. All the chips are soldered onto the ECU/PCM. The only way to modify the ECU/PCM is through the dealer, and they won't do custom stuff. There is one for my car, but it's maybe $300, you have to mail your ECU/PCM to them for them to program, and it's performance-centric.

CarloSW2
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