Chevrolet Repair Questions? Ask a Mechanic for Answers ASAP
No check engine, there are no codes my scanner can pick up although I am going to try to get to my garage guy this weekend and get him to read it with his scanner.
It has not stalled out, today it started idling about 1000rpm and it seems like when I get to 2k rpm it just wants to hesitate.
I replaced all the other parts because I was getting codes and engine light on. The codes indicated that the TB controller was having issues. I was having the truck go into "limp" mode fairly often. Since replacing all those parts it has not done that at all, now just the idle issue.
I can check and work on that tomorrow night / Saturday. Where is the idle air inlet passage? I took the air cleaner and the MAF sensor open and cleaned them out also.
Can I reach you through this site when I check those things?
Ok, I could not find any vaccum leaks and then this morning I got the "Reduced engine power" right after I started it. Turned it off and got my code reader. It threw a P1125 - APP sensor code.
This thing is starting to get very dependable on doing its stuff. I start it up, it will idle rough and then when I start moving I get to about 2K RPM and it starts "surging". As soon as I get to about 2200 it smoothes out. The whole time I am driving though because I am never much over 2500 rpm it always seems like it is on the verge of going into Reduced Power mode...just seems like it is hesitating a little all the time. Any more ideas?
Inputs into this sensor? Is that what comes from the position of the gas pedal? Is there a procedure for testing the wiring harness? I have been reading a lot lately about the wiring harness itself having issues...
What is the possibility that the ground on the back passenger side of the block, even though it is tight, is corroded or something and not making good contact?
Redid both grounds, still the same issue. At this point I am trying to find a APP sensor from a junked Suburban or Tahoe to replace the aftermarket one I put on. This whole process has been a pain in the butt...
I'll let you know how I make out.