Hi, I have a 2007 Silverado (Classic) 1500. Can you take a look at the tune file?
The engine starts and runs great. Whenever I rev or come up to a stop sign the idle periodically hangs at 1200. Also while driving the engine periodically looses all power and when I look at my wideband it shows a lean spike (18 or so). Then it bounces right back and drives perfect again. Under full throttle there seems to be no issues..
2003 LQ4, DBW, off-road y-pipe
Trickflow 228/230 .585/.585 112
PCM is a 2007 Serv No 12602801
All else is factory
5 speed manual NV3500
My tuner will not acknowledge my issues.
This was originally a 4.3 V6 by the way