Diagnosing MAF issues

[BigAndy]

but it beats having your personal info spread around by

 

[P2B]

I removed the MAF and examined it. First off, the screen on the air filter side was quite dirty and the tunnel was also far from clean. I think each time I change air filters now, I will use some MAF cleaner on this. I think this explains the slow degradation of power over the last few years, more so than clogged intakes and worn nozzles.

The MAF should not get dirty unless the air filter is not doing it's job or there's an air leak between the air filter and MAF.

Simon

 

[P2B]

Perhaps cleaning the MAF annually is a bad plan?

I inspect the MAF and it's electrical connection when changing the air filter. It hasn't looked like it needed cleaning yet... and I also have 10 years and 250K.

Simon