My 88 2.8 V6 (T-5 transmission) runs great. But recently it's started turning the SES light on. Now it's on all the time. I'd pull the lamp out, but I have to have the smog **** sniffer test and I bleeve that's one of the things they check for.

So I did a search for this and the only answer I found said that his problem was caused by a bad ECM.

My question is, if I buy a performance chip from Jet or hypertech, will that include the entire ECM or are those chips only add-ons or replacements for a different portion of the EC system?

Thanks,

 

if the ecm wont even go into diagnostic , sounds like its bad. A performance chip will not include the ecm.

 

Ok. I guess I'm gonna have to replace the ECM. Bummer.

 

have you tried going into diagnostic mode by jumping the a to b on the aldl with the key on ? do you have the service number on the ecm I might have one to save you some money over new.

 

Yes. I can go into diag mode...at least the fan comes on. If by service number you mean 1227302 then, yes, I have it.

 

if your not even getting 3 code 12's Id say its bad. I have a 1227302 with a hnl prom for $35 shipped if you want to see if that fixes it.
HNL
C60 AIR CONDITIONER, FRONT, MANUAL CONTROLS
With LB8 2.8L GAS 6 CYL MFI V6 LONGITUDINAL
With MB1 MAN 5 SPD BORG WARNER 76MM 4.03
With NA5 FEDERAL REQUIREMENTS

 

PM sent.

 

I found the ECM in my mailbox today. It was probably delivered yesterday, but I didn't check (my mailbox isn't the most convenient thing to get to...it's half a block away in the wrong direction.)

Thanks for getting it to me so promptly and a a great price.

 

It was out for delivery une 09, 2012, 9:26 am . I hope it solves your problem. Next time I will just ring your door bell. LOL