Hi I've been having problems with my check engine light coming on when i start up the truck and goes on and off when I'm driving. When the light comes on the truck runs like it has half the power when i have my programmer on stock mode, but when my programmer is turned up I can't notice a difference. I took it to a shop to get it scanned and the guy told me that it might be a misfiring injector but when he tested all the individual injectors with the scanner, he wasn't able to find it, and the injectors where installed a year ago. What should i do or look for. I've searched for burnt or chaffed wires and haven't found any, but not to sure where to look. Thanks
I checked the icp and oil was not all over it. I tried disconnecting the 4 connectors to the valve cover harness to check them, and i broke one of the clips. How would i replace the clip and where would i ge the clip to do this.
ICP check the wiring and triple check oil in the connector. Any oil in there means it is on its way out.
EOT on back of HPOP, if you can get live readings you can see if it is defaulting to 140 degrees. Easy to replace. Just suck some oil out of the HPOP and swap it out.
MAP check the line going to it. I recently replaced mine and it fixed my weird shifting issues. Get a live MAP reading at idle and it should show atmospheric pressure.
CPS check wiring and one of the easiest sensors to replace. Commonly goes out and is the cheaper of them. Replace this one first and always have a spare
I replaced the CPS last night and the truck ran good with no check engine light. Well after about 15 miles the CEL came back on which code should should i go after next.
Ok I got the truck scanned again and cleared and the only code that was still there was still there was ICP code. Does this mean that i might need a new ICP. And there was also a new code P0203
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