My grandpa has a 1990 chevy celebrity with the V6. It needs a new ECU and I was going to replace it myself, any ideas on where the ECU will be located? Or perhaps do you know where I could find an Engine diagram for it? Ive googled but found nothing. THanks in advance.

 

buy a haynes manual if you can find one, they stopped making that car like 15 years ago lol.

 

Lol I know. Funny thing is that it's almost 10 years older than my truck and has 1k less miles.

 

are you sure the computer is the problem?? i want to say its near the firewall

 

Yea we had an Engine diagnostic run on it and it showed a bad ECU.

 

Most from that era were behind the passenger side kick panel.

 

i think f151 is right , i had a vintage 87 s10 i think it was down by the panel somewhere.i think that was the first year chevy put fuel injection in the trucks.

 

It is located behind the glove box. Follow the link below. It tells the location of GM vehicle ECM's.

http://westers_garage.eidnet.org/gmbox.htm

 

google Images - punch in ignition then car

 

ALLDATA will have most of it as well - for a price - Just keep lookin , you'll find it..

 

Thanks guys major help.