Check Engine Light

[cecilg]

Was getting CEL light with code P0102 ( Mass Air Flow Sensor - Below Lower Limit). After cleaning the MAF sensor and replaced dirty Air Filter with new KNS Filter, now getting new codes 1123, 1125 (Oxygen Sensing Adaptation) faults. Thought the filter change might have introduced this, but replacement with cleaned original filter and same codes reappear. I suspect that the MAF might be source of this problem, and replacement might be the real solution. What experience or suggestions due you have?

[Sputter]

Do you mean K&N?

Was getting CEL light with code P0102 ( Mass Air Flow Sensor - Below Lower Limit). After cleaning the MAF sensor and replaced dirty Air Filter with new KNS Filter, now getting new codes 1123, 1125 (Oxygen Sensing Adaptation) faults. Thought the filter change might have introduced this, but replacement with cleaned original filter and same codes reappear. I suspect that the MAF might be source of this problem, and replacement might be the real solution. What experience or suggestions due you have?

[Richard Hamilton]

Just search +P1123 +P1125 here, and I think you'll find your answer. Nine times out of ten it's the MAF. Cleaning it only works if it's dirty.

[70Sixter]

I try cleaning MAF first. If oil got to MAF replacing filter is too late. This is common with oiled filters. Although some have no problem. Usually results from excess oil after re-oiling filter. Wrapping oiled filter in newspaper is the reported solution to excess oil.