Odd results from code scans.

[Mrgreen94gt]

I've been having this problem where it wants to lope and jerk at idle and while rolling at idle, but it seems to run fine the rest of the time. I ran codes and got a code sayingthat "intake air temp. is higher or lower than expected" and "lacked of heated air indicates lean condition bank 1". The DCL scan also showed the O2 sensors as reading invalid.

So, I clean the IAT sensor out and run codes again. This time it gives, 314 Air system inoperative in KOER bank 2, 311 Air inoperative bank 1, along with the typical 332 EGR flow insufficient. These are always there and give no problems. The odd part is that it still says that the O2's are invalid but there are no codes being thrown for them.

This is driving me NUTS!!!!

 

[mo_dingo]

I've been having this problem where it wants to lope and jerk at idle and while rolling at idle, but it seems to run fine the rest of the time. I ran codes and got a code sayingthat "intake air temp. is higher or lower than expected" and "lacked of heated air indicates lean condition bank 1". The DCL scan also showed the O2 sensors as reading invalid.

So, I clean the IAT sensor out and run codes again. This time it gives, 314 Air system inoperative in KOER bank 2, 311 Air inoperative bank 1, along with the typical 332 EGR flow insufficient. These are always there and give no problems. The odd part is that it still says that the O2's are invalid but there are no codes being thrown for them.

This is driving me NUTS!!!!

Can you just post the codes you got? That would make things much easier for me. There is no code saying that the O2's are "invalid". That is wrong.

Whoever said that the description of any of the O2 sensor related codes has the word "invalid" in it was a complete tool.

Just post the numbers, and we can go from there.
Scott

 

[Mrgreen94gt]

The invalid came from the DCL data scan, not the codes.

Current codes are 332, 314, 311, 536, and 632.

I got 172, I think, before I cleaned the IAT. I can't remember what number the lean condition code was.