Service Engine Soon light 99 Cobra - Ford Mustang Forums : Corral.net Mustang Forum
 
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post #1 of 2 Old 04-11-2002, 02:56 PM Thread Starter
 
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Service Engine Soon light 99 Cobra

I have a 99 Cobra Roush stage 2 which I added theVortech supercharger kit last May. A couple weeks ago I had it dyno tuned because of excessive pinging. It now runs great but the Service Engine Soon light came on. A friend used a scanner and determined the code was 0605 something to do with Internal ROM error in the car's computer. I took it to the dealer who immediately refused to touch it do to the modifications.

Any ideas how to fix it? Like I said, the car is running the best ever but the light bugs me.

Thanks

White Asp

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post #2 of 2 Old 04-11-2002, 03:30 PM
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CODE: 0605 (P) - Internal Control Module Read Only Memory (ROM) Error
Engine: 4.6L
Year: 96-00
Description:


Ok, well, my guess would be that your chip might have something to do with it. You might also want to try in the EEC forum. Seems like I remember reading somewhere that the new computers will throw a check engine light if there is a custom chip. Try removing the chip and disconecting the battery for 30 mins-1hr. Then hook the battery up and crank it up with out the chip in there and see what happens.

The other thing I can think of is that you might have done some kind of damage to the computer(bad ground) or something.

Safe thing to do would be to take it back to your tuner and see what he has to say.

If you want to get the 99 service manual CD, that covers your cobra, here is the link.

www.ranger1.org

You'll find the directions on there as well. Just make sure you lable the CD 1999Car when you burn it.

The directions are the Readme.txt file on that page by the way.

Wes


1990 red GT 1966 289 coupe 1984 GT350 20th Anniversary Convertable 2006 V6 Coupe

Last edited by Wangstang; 04-11-2002 at 03:35 PM.
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