[BNaylor]

Originally Posted by CRazyGPCHick

Try to spray the MAF before you buy a new one. At least make sure the part the issue and not a related wire, etc. I know the older Delp** models last a long time and rarely fail. Just use carb cleaner and place the MAF downwards when you do so the resistor in the meter doesnt get a spray.

Cleaning the MAF sensor wire element and thermistor is not a bad idea but it very seldom works and the MAF will need to be replaced especially if a P0102 DTC has triggered the SES/CEL light. This DTC relates to a out of range frequency (low frequency) related problem and a malfunction with the electronic ASIC component in the sealed portion of the MAF sensor.

However, I would not use carb spray cleaner on the wire element/thermistor. Use MAF spray cleaner or electrical contact cleaner only. The contents of carb cleaner such as xylene, acetone, methanol, etc will damage the thermistor.

Last time I checked the MAF sensors for '97-'03 Grand Prixs with the SII 3800 engine VIN "K" and "1" were made by Hitachi. They do fail more than rarely.

Here is one from a '99 Grand Prix GT VIN "K" that generates a persistent P0102 DTC and a cleaning did not help. It has a Hitachi part number and a made in Japan stamped into the metal portion. The MAF is located at the top of and integral with the throttle body on a SII 3800 engine and not at the input of the intake ducting like on GM 3100/3400 engines so I don't understand your advice below.

Just use carb cleaner and place the MAF downwards when you do so the resistor in the meter doesnt get a spray

MAF Sensor SII 3800