i'm hoping someone can help me, i bought a non running GC with the 5.2L. i was told some one tried to disable the factory alarm and it wouldn't start after wards :nono: .It turns over fine but i get not fuel pressure(but fuel pump works) , i get no spark, and no check engine light, i replace the ignition switch (hoping for a cheap fix). i have an idea it's the pcm or ecu whatever you wanna call it.
any help or sugestions would really help :banghead:
Matt

bigmutt
Wish I could help you but I also just baught, actually I was given a 1993 GC and I had to make it run. Check out my "mater head cylinder" post. Im slowly getting there. I wish I could help you, but Im getting to know JGC myself. Best of luck, the guys in here are great and should have something for you in no time.
Laloquera

PS
I've spend $350. on the GC so far.

i' thought i would get away cheap(not as cheap as you though :smokin: )
i think it;ll be under $2000 ca if i have to switch out the computer :rolleyes:

i havn't managed to get the alarm in diagnostic mode either
if i turn the key on the abs and the airbag lights up but nothing else if i leave the key in the on position for a while then the security will light up
Matt

A new ECU shouldn't cost more than $250-350 US. A dealer should be able to tell you if that is the problem. Any regular shop should be able to install the ECU. I don't think it's that big of a job.