[Biturbos4] Re: MAF sensor

j y jimnetpa at yahoo.com
Sat May 21 02:57:12 EDT 2005

Three things u can do to confirm that it's the MAF. 
1) take off the MAF and run the car. If it runs smoother - the MAF is toast!
2) If you have VAG-COM - log your MAF readings (i forget which block records MAF). If it's in the low 200s, or less - your MAF is toast!
3) look at the MAF visually and MAKE SURE it's not a BOSCH - don't assume that you have a Hitachi unit - if it's BOSCH - it's probably toast!

Derek Cheuk <dcheuk1 at hotmail.com> wrote:
Thanks to all for the responses. I actually haven't looked but my S4 is a 
01.5 so I assume it has the Hitachi. My car has lots of hesitation at WOT, 
I almost have to coax it to go full throttle, and I've changed over to 
hyperboost diverters with no change so I believe it's the MAF. I'll let you 


01' Black S4
115k miles

>From: Quincy Chiang 
>To: Bill Coleman 
>CC: biturbos4 at www.audifans.com
>Subject: Re: [Biturbos4] Re: MAF sensor
>Date: Fri, 20 May 2005 08:04:26 -0600
>Bill, I think that only covers Bosch MAFs used in early pre-'01.5 cars. 
>Later cars have Hitachi MAFs that are supposedly to be much more reliable, 
>but mine has failed at 44,xxx km (3 years 5 months)
>----- Original Message -----
>From: Bill Coleman 
>Date: Friday, May 20, 2005 5:46 am
>Subject: [Biturbos4] Re: MAF sensor
> > Didn't Audi extend the warrenty on MAFs to 100k miles with no time
> > limit? I
> > know I replaced mine at my own expense but was subsequently
> > reimbursed by
> > Audi when the announced the extension. You should definately
> > check with
> > your dealership to see if you can get it done for free!
> >
> > Bill
> > '00 S4 6sp
> > '01 A4 Avant 1.8tq sport 5sp
> > '87 928 S4 5sp (the 'other' S4)
> >
> >
> > _______________________________________________
> > Biturbos4 mailing list
> > Biturbos4 at www.audifans.com
> > http://www.audifans.com/mailman/listinfo/biturbos4
> >
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