MAF cleaning
Thread Starter
Pro
Joined: Jan 2008
Posts: 642
Likes: 48
From: New Jersey
MAF cleaning
Was going thru some magazines before chucking them. I always seem to pick up some info the second time reading them. This article was on MAFs and how they worked. Last sentence was that you should clean your MAF every 6 months. The car only has 2,500 miles on it I have a K&N air filter and I know that the oiled cleaner might cause a problem. I picked up a can of MAF cleaner but I wanted to see if it made a difference. So before I cleaned it I hooked up my scanner and the MAF reading was 11.50 gm/sec at 700 rpm idle. After cleaning the reading was 10.2. Wow about 10% difference. So it was falsely reading more air and therefore was giving more fuel which would create a rich condition But the LTFT reading was -6 which says the O2 sensors saw rich and the ECM was compensating by leaning it back to stoich.
Le Mans Master
Joined: Feb 2012
Posts: 5,707
Likes: 547
From: SE Pa
just had the check engine light come on this AM, haven't read the code yet but my guess is 'MAF' , since I recently installed an Airaid CAI ……. and NOT the one with the dry filter.
Any guess as to a cleaning and reset curing the situation ………… probably best to buy the 'dry' element as well I suppose
Any guess as to a cleaning and reset curing the situation ………… probably best to buy the 'dry' element as well I suppose
