Mass Air flow sensor cleaning
 

I cleaned the Mass Air flow Sensor and was surprised at how easy it was. I read someone's posting on here recently that indicated a lengthy job. If I had been paying attention, I would have noticed very little to remove and clean and could have knocked it out in 30 minutes or even less. I think it's running slightly stronger. It actually looked pretty clean when I pulled it out.

Well, it usually turns into a lengthy job because pretty much everyone decides that it's a good idea to clean the throttle body at the same time. Getting all that tubing out is a ********************, especially if it's a bit colder.

What were they thinking! I now have one more use for the heat gun. I spent 30 minutes wrestling with that idiot tube before hitting it with the heat gun. I won't say it was easy after heating, but it was at least doable.

Don't you have an engine to install? :p

True. It was a decent temperature even though its winter. I got the hose loose without too much trouble.

I debated cleaning mine while I was in the neighborhood and decided not to. I had read that the effective membrane is not meant to be cleaned and actually damages it and cleaning it was a "last ditch" effort to extend the life. Can some of the experts comment?

I had 1128 and 1130 CELs which got resolved by cleaning the MAF. Followed Mike Focke's instructions on his MAF article here.

Based on visual inspection, I was of the impression my 99 is a hot wire sensor, not a membrane. The newer boxsters may very well be membrane sensors, a newer technology.