computer problem

[sprawlbrawl]

Hi guy and girls I'm new to this fourm.I'm having an issue I race my sunfire and do pretty well its a four cylinder race sometime I race open class with v6 and 8 cylinders .I presently ran my computer witch is stupied of me I didn't even realize were it was when I bult the car rookie mistake lmao.my car is a 2000 sunfire gt 2.4 standard,now the question is can use a computer and wiring harness out of an automatic or will the safey neutral switch on the automatic not let my car work right

 

[ericv1984]

I don't see why not. When you buy a new computer for your car it doesn't specify whether it's for an automatic or manual, so I'd assume they're universal.

 

[sprawlbrawl]

K good what about the automatic wire harness should that work to? I hope so I want to go racing

 

[ericv1984]

Harness should be universal too.

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[sprawlbrawl]

Ok thanks I'm going to try it ill let u know how I make out

 

[fire_2nv]

Wrong and wrong. The harnesses are diff. Aswell as the computer. Computer will plug in and work fine (after theft relearn) but your going to be throwing all kinds of auto trans codes. Now it won't affect the function just a check engine light. Harness is diff aswell. Trans is electric, this isn't the 1980's anymore guys. So you'll have the trans plug just hanging aswell u won't have any reverse lights. The safety switch is on the clutch pedal inside. The harness will work, but requires monkeying ... Just get the right one IMO

 

[melsg5]

Can you explain why this site lists only one computer for the car?

http://www.gmpartsdirect.com/catalog/frameset.cfm

 

[fire_2nv]

Because the computers are the same, the difference is the flash the dealer put on it

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[melsg5]

So the OP could install an automatic sourced ECM but would have to spend the bucks to get it flashed at a dealer?

 

[fire_2nv]

Well yes and no, he could take it to the dealer and have it flashed. But like I said this being a 5 speed he can run the computer it's just going to throw auto trans codes. Should run fine, just a check engine light. If it was a 5 speed comp going into an auto car would stick in 2nd gear iirc in limp mode.
But yes u should be able to go to the GM dealer and reflash, I've never gone to the dealer and had a stock flash done, just the GM s/c but I don't see why they couldn't do a stock tune. That being said the s/c tune cost a bit over $200 to have done, so if the codes bug him prob cheaper to go to a junkyard and pull a 5 speed one.
One other thing, tune differs from motor to motor and the computer will have to be from a 2000-2002