I had this same problem! The only answer is to tune it. First I tried the obd plug in DOD disabler like you. Then I tried Diablo Sport tuner which was junk in my opinion. Caused all sorts of issues with pinging false misfires, and surging. The handheld unit is slow, laggy, and feels cheaply...
General update on the Yukon: The truck runs great! As a daily driver/hauler I should've opted for a more low end torque cam instead of the BTR Stage 1 performance. Long trips on the interstate is where I really feel the difference with the new cam. Just when you think you've maxed out, just push...
Hindsight is 20/20 as the saying goes. I didn't know the whole bank was dead at the time cause that would've been a great idea! The ECM only informed me of a random misfire p0300. :banghead:
Thanks! I bought the Flowmaster converters not the Magnaflow. I've since returned them and gone back to stock. Good luck with your P0420! Get yourself and O2 thread chaser before you pull out your sensor as they sometimes wreck the threads coming out.
Thanks for the replies!
The burning out the Cat was my fault as I was limping the truck home with a flashing CEL which is always unadvisable. I had little choice at the time. That problem has been repaired for good and was a bad engine ground that killed the entire driver side bank of ignition...
Yeah I didn't think a stage 1 cam without valve springs was a "big cam". Especially the way it was written up that it kept "stock idle characteristics" and no larger converter was necessary. Live and learn I guess. Maybe another cam swap in the future, but for now I'll have to learn to love it...
Hello everyone!
First post on the forum so here goes!
Thanks for all the great information I’ve found on this forum already and I hope that this post contributes in some small way.
This may be a long post and apologies in advance if this turns into a rant. Writing this out helps me organize...
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