Try Downy....
'12 Caprice PPV 6.0 L77 - daily transportation
8.7 @ 84 (1/8 mile) bolt-ons
'02 Silverado RCSB 5.3 L59 - regularly street driven
8.2 @ 86 (1/8 mile) stock cam and spray
8.6 @ 84 (1/8 mile) cam and heads no spray
Our YOUTUBE CHANNEL featuring the Silverado
Isnt this close to the same problem im having? I started a thread today in the general section. bSame year pcm same year truck same problem. I can read the pcm fine but thats it. says its not recognized when trying to write to it. Did this post ever get resolved, any updates? thanks.
I pm'd Tech Support on your other thread, and I linked them to this one also.
thanks joecar. We are going to try the prerealease update that was posted today. Hopefully it will work.