help!! truck shut off wont start

97stoker350 · Jul 29, 2014

Ok got the scanner to work and I'm getting codes 1661 1280 0603 0472

97stoker350 · Jul 29, 2014

I must have a short somewhere because I checked my icp sensor for visual defects like oil in the plug andI even unplugged it and if the cel is on it won't fire but all I'm getting is the 1280 code. Sometimes the cel will go off and truck will run but only for a minute if that and then throw cel again and shut off

TyCorr · Jul 29, 2014

97stoker350 said:
I must have a short somewhere because I checked my icp sensor for visual defects like oil in the plug andI even unplugged it and if the cel is on it won't fire but all I'm getting is the 1280 code. Sometimes the cel will go off and truck will run but only for a minute if that and then throw cel again and shut off

Try inspecting and changing the pigtail?

97stoker350 · Jul 30, 2014

Pig tail looks brand new even pulled back the plastic on the harness and checked the wires

97stoker350 · Jul 30, 2014

Talked to swamps and Dave said about checking the chip. Sure enough when I took the park I g brake off the chip fell out on the floor so I got it back in and she fired right up and has been running fine ever since

Arisley · Jul 31, 2014

ALWAYS. If you have a chip in and an issue. First thing you check is the chip. ALWAYS.

You need to pull the PCM out and put a piece of duct tape over that chip and tape it to the PCM. That is why it is in the instructions.

Glad you found the issue.