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MAF and a new whine

teppichkopf
in 1990 to Present Legacy, Impreza, Outback, Forester, Baja, WRX&WrxSTI, SVX

Featured Replies

'96 Legacy OBW EJ22 5sp

 

I'm finally getting motivated to fix this MAF hesitation problem. I dont' want to deal with is when there's snow in the passes (ski season). But just this week I've also gotten a little whine (sounds like a bird) with the chugs from 2k-3k rpm. I certainly need to finish the full precedure: pcv, wires, front o2 sensor, and MAF.

 

But about the whine: must be vaccum? I also get a high pitched whine above 5.5k rpm. (not that I'm there much.) I've looked high and low and cannot find a vacuum leak. Neither brake cleaner or starter fluid make a change in rpms when sprayed around the engine compartmant. I can't even find the infamous hose under the air filter box.

 

I just hope a new used MAF clears up all the issues.Should I buy new? Or can I trust a used one? If anybody has a working MAF (AA160F) let me know.

how do u know when its time to replace it?

 

 

other than a cell

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