Originally Posted By: artificialist
O2 sensors may fail without triggering a warning light, but a MAF doesn't.
I would just leave the sensor alone except for an occasional cleaning.
They can go out of range, if they pick up grime on the sensor and don't "see" enough airflow to cool off the calibrated amount.
But then the fix is to clean them, carefully, unless you botch that. Then you get to go shopping like you wanted to anyway.
O2 sensors may fail without triggering a warning light, but a MAF doesn't.
I would just leave the sensor alone except for an occasional cleaning.
They can go out of range, if they pick up grime on the sensor and don't "see" enough airflow to cool off the calibrated amount.
But then the fix is to clean them, carefully, unless you botch that. Then you get to go shopping like you wanted to anyway.
