2001 GMC Jimmy Lots of trouble codes, cant get inspected

CAJUNS

MEMBER
2001 GMC JIMMY
6 CYL
4WD
AUTOMATIC
152,000 MILES

It has been sitting up for 5 years. Was told it was the fuel pump, was not starting. Changed fuel pump, now it does start, but runs rough, and when I went to get inspected, it came up with all these codes.P0101 PO327 P0335 PO341 and PO452 Have changed: Fuel pump, fuel filter, spark plugs, spark plugs wires, oil and transmission fluid. It's still running rough and the tachometer is jumping around all over the place, and never settles down to one place. Almost acts like a vacuum hose is cracked or off in the way it runs, but so far have not found that. Runs okay sometimes, but most of time runs the way I described. Could any of these codes possibly mean the same thing, or is all this wrong possibly wrong with it? Every time we replace something, it runs pretty good for a very short time, then starts running rough again. Thanks in advance! Peggy

2 Replies

HMAC300

MECHANIC
48,601 POSTS

This could be a battery that h as gone bad causing this problem. But the best thing to do is get the codes cleared and run the vehicle with a known good battery and see if it clears up. If it still give s the same codes it has a problem as it's the knock sensor/cam sensor/cranksensor/ and evap problem the evap could be that you got gas and didn't tighten the cap at least 3 clicks. It will set a code if you don't do that. But keep in mind you could have all these sensors bad as well. Have a pro check this.