Air Flow Sensor

Louie1411 · Louie1411's Garage

I am about to install a new AFM and Throttle Position Switch. I have no shop manuals but it appears to be a basic "remove and replace" operation. Are there any hidden pitfalls that I need to be on the lookout for? Or any tips for that matter?

Scott R · Scott R's Garage

No it's easy. When you install the TPS it needs to be adjusted so that when the throttle plate is closed you hear a "click" as the switch is depressed.

Scott R · Scott R's Garage

What's wrong with the factory preset? If the original plug has not been drilled and the cover is intact, then why monkey with it?

Louie1411 · Louie1411's Garage

IS the factory preset on the AFM OK to go with or if not..How the hell do I set the CO level?

Scott R · Scott R's Garage

I have just dropped one in and had it work fine, even passed emissions with flying colors.

I specifically looked for one that had not been adjusted before. Meaning that the adjustment screw cover was in place, and that the top still looked sealed.