just a guess, an educated guess. Most of us here run Off road Y pipes. Not cats. And have the pcm tuned so the SEL doesnt come on. Plus a tune will help your performance dramatically. Get it scanned first. Might be a fuel issue.
just a guess, an educated guess. Most of us here run Off road Y pipes. Not cats. And have the pcm tuned so the SEL doesnt come on. Plus a tune will help your performance dramatically. Get it scanned first. Might be a fuel issue.
Dad's duramax did the same thing a few years ago... Turns out it was bad injectors from running red diesel.
1969 Chevy RCLB C10 350/TH400 SOLD
2007 Chevy RCSB 4.8 4x4 LS SOLD
2008 Chevy RCSB 5.3 4x4 LT SOLD
2010 Chevy CCSB 6.2 4x4 LT SOLD
2005 GMC CCLB DRW 6.6 Duramax 4x4 191,000 and counting
2013 FORD CCSB F350 6.7 Powerstroke 4x4
Posting Permissions
Reply With Quote
