aris_unlimited wrote:Does the MAF really make sense here? Don't think it would be effected by a car wash or rain...
Well lets use our brains to think for a second...
What does a MAF do? The MAF sensor provides the open-loop predicted air flow information (the measured air flow) to the ECU, meaning that it measures engine intake airflow, and then relays that information on to the ECU.
Are the sensing units of the MAF delicate? yes
If water, condensation, or excessive moisture gather on the contact points, could it cause the MAF to misread/malfunction? yes
Therefor, could a MAF sensor be directly effected by rain or a car wash? yes
A 3,000 rpm redline type symptom is a tell tale sign of a bad MAF. Your just lucky that it still works.