Does anyone know how to test the voltage on the terminal that connects to the mass air flow sensor on a 98 OB 2.5 L? I tried the test using instructions from the Haynes book, which aren't too specific, and can't find any voltage coming in here with key in ON position. Any idea how much voltage I should be looking for??

Does anyone know how to test the voltage on the terminal that connects to the mass air flow sensor on a 98 OB 2.5 L? I tried the test using instructions from the Haynes book, which aren't too specific, and can't find any voltage coming in here with key in ON position. Any idea how much voltage I should be looking for??

 

hrmm the haynes manual seems pretty clear, its says battery voltage. So whatever the battery is putting out with the key on is what is supposed to be there. It also says that if it is not there to check the puter with a scan tool. the wiring diagram has it powered by the ecu.

 

nipper