New to this 1990 454ss
10-08-2016, 10:53 PM
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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; 10-08-2016 at 10:54 PM. Reason: New title
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