spark cuts out
09-14-2007, 07:47 PM
#1
spark cuts out I have a 04 silverado stock except for headers. It seemed like it had a little miss to it. I was logging while driving and noticed when it felt like a miss the timing was dropping 10-16deg or so for a split sec. I had the truck in OL when it happened. It does it at part throttle and idle. It doesnt do it everytime a cylinder fires but it does do maybe once every min maybe. Any idea's?
The truck also wont run in CL with the o2's on it will barley run and get missfire codes. The O2 heaters are flagging for both banks. I just put in new O2's and it didnt help.
The truck also wont run in CL with the o2's on it will barley run and get missfire codes. The O2 heaters are flagging for both banks. I just put in new O2's and it didnt help.
Last edited by minytrker; 09-14-2007 at 09:35 PM.
