nacanitihs

ok so when im driving my CEL comes on and off. i decided to run the codes. KOEO i got an 11 system pass. with the KOER test i got 41, 33, and 99.

41 - No HEGO switching detected always lean (right side).

33 - EGR valve opening not detected.

99 - EEC system hasnt learned to control idle. (got this doing the cylinder self balance test)

well the 33 i assume my erg is screwed but i have a diff one, plus i have no smog stuff

the 99 i just reset the idle and only drove it like 3 miles and it wasnt even warm when i reset it so i gotta do it again.. (surges a little)

but what do i do about the 41? i honestly dont know what to do.. anyone have a solution?

thanx

AdderMk2

reset the codes and swap your o2 sensors from right to left. drive the car and re-run koer and see if it comes up with a 91 ... if you get a 91, you have a bad o2. if it stays 41, you have a wiring problem.

nacanitihs

ok ill give that a shot. hopefully its just a shot o2 sensor. i wouldnt want to play that other game...

safado

+2 on the swap diag

NotchAbove

33 - Is due to not having a vacuum line to your EGR.

The 99 your getting isn't what you think. 9 / 9 on the Cylinder Balance Test indicates all cylinders are in balance. It flashed code 9 twice, hence 99.

41 has been addressed already.

Good Luck.

nacanitihs

ok sweet looks like i need an o2