[Gmecm] MAF sensor tech info

[Rick McLeod]

Thanks, Mark, but been there, done that w/ no help. I
can swap in a known good MAF and reset codes and all
works. I can put that bad MAF in a different car and
it sets codes. Therefore, I am reasonably confident
it's the MAF, therefore my quest to repair and save a
few hundred greens, since I have 2 that are t---s up
on the bench! 

--- Mark Mansur <mmansur at hotmail.com> wrote:

> It could be the sensor, but most likely it's the
> burnoff relay. Replace the 
> relay and chances are you'll be back to normal with
> no more codes. They're 
> cheap enough to skip the diagnoses.
> 
> If it makes you feel any better, my burnoff relay
> finally failed at around 
> 200k miles.
> 
> M
> 
> ----- Original Message ----- 
> From: "Rick McLeod" <dunvegan at sbcglobal.net>
> To: "gmecm" <gmecm at diy-efi.org>
> Sent: Tuesday, August 02, 2005 6:42 AM
> Subject: [Gmecm] MAF sensor tech info
> 
> 
> > Has anyone decomposed the stock GM TPI MAF. I have
> 2
> > that seem to read the airflow, but set code on
> restart
> > for the burn off circuit failure. I know this to
> be
> > sensor related, as I have 2 others that work
> > correctly, so I suspect something in the circuitry
> and
> > am curious if they can be repaired by a reasonably
> > skilled electronics savy tech.
> >
> > What I am looking for is schematic and hopefully
> parts
> > list. I've attempted searching with my best friend
> mr.
> > google but haven't found anything of sufficient
> > detail, only a good procedure to diagnose relay
> > failures, which are working correctly on this car.
> >
> > Thanks in advance
> > _______________________________________________
> > Gmecm mailing list
> > Gmecm at diy-efi.org
> > http://lists.diy-efi.org/mailman/listinfo/gmecm
> > 
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