» » »

Chevrolet Q&A

Ask Your Question

1995 Chevrolet Cavalier Question: I have a 95 Cavalier code 44 lean burn,with a bad hesitation and skipping feel

 

Question

kennyt777, 2.2L 4 Cylinder, Moncks Corner, SC, October 26, 2011, 15:39
 Rookie

i unscrewed the o2 and drove it and the skip went away so I thought the cat was clogged so I screwed the o2 back in and the skip came back THEN the check engine light came on and it ran perfect like when the o2 was out. Someone has replaced the maf and egr. I have a snap on scanner and the o2 is switching pretty good, so this is throwing me for a loop like the computer may be bad, any ideas? Thanks Ken

1 Answer
Flag This
  • Answer #1

    mastertech6371 October 26, 2011, 15:52
    Profile_thumbnail
     Master

    what is the block learn and interrogator readings??

    Roy

    Flag This
  • Reply

    kennyt777, October 26, 2011, 16:51
     Rookie

    I found the problem, the thermostat was staying open telling the computer the engine was cold and dumping fuel which over a period of time fouled out the o2 sensor making it set a 44 code lean fuel but when I replaced the o2 the lean fuel code 45 appeared and I had to trace down the original problem which was causing all kinds of problems. The scanner was showing the temp at 130 -135f after running for hours and the temp gauge inside barely moved off the C. Sometimes its the basics we forget to check that will cause of a lot of head aches.

    Reply
    Flag This