New to this 1990 454ss
Oct 8, 2016 | 10:53 PM
#1
Thread Starter
Registered User
Joined: Oct 2016
Posts: 1
Likes: 0
New to this 1990 454ss
1990 454 ss 137,000 miles. Well had it for a few years I'm having a engine light ,fist was the knock sensor now I have code 42 and its talking about the ecm being bad but all is doing is running rough and smoking if I advance time to like 12 deg runs a little better I will change distributer tomorrow and suggestions ??? Thanks
Last edited by Lr454ss; Oct 8, 2016 at 10:54 PM. Reason: New title
Thread
Thread Starter
Forum
Replies
Last Post
joblo1978
GMT 900 Trucks General Discussion
28
Oct 22, 2016 06:02 PM
slvrram
GM Engine & Exhaust Performance
15
Oct 12, 2016 03:39 PM
TombstoneAK
GM Engine & Exhaust Performance
9
Oct 4, 2016 12:13 PM
