Throttle position sensor/circuitry checking w/resp. to poor fuel econ.
motogo1 at cox.net
Wed Sep 10 00:19:47 EDT 2003
Well, on my TPS, voltage between pins 1 and 2 is 5V..in spec per Bentley.
Between pins 1 and 3, 1.6 volts. Not even close to Bentley spec. My car is
chipped with IA III+ and runs strong, with no problems. I'm going to have to
check the mileage, to see what I'm getting.
91 200 TQA
----- Original Message -----
From: "motogo1" <motogo1 at cox.net>
> I may just go out and check my TPS on the 200 and see how it compares
> your tests. I'll report back later.
> Gary Martin
> 94 UrS4
> 91 200 TQA
> ----- Original Message -----
> From: <benswann at comcast.net>
> To: <200q20v at audifans.com>
> Cc: <quattro at audifans.com>; <benswann at comcast.net>
> Sent: Tuesday, September 09, 2003 7:44 AM
> Subject: Throttle position sensor/circuitry checking w/resp. to poor fuel
> > One of the suspects I've been trying to rule in/out is the throttle
> > sensor and circuitry. According to Audi/Bentley Sec 24-120-2 the
> > between pins 1 and 3 must be 4.5 to 5.5 volts. On my car the reading
> > 3.3V. According to Bentley that means faulty wiring or bad ECU.
> > Having access to another unchipped '91 200 20V, I ran same test -
> > between pins 1 and 3 is 3.7V which is apparently not in spec. either.
> > Is the manual 100% correct. Is this a coincidence and both cars have a
> > problem? Is there something that goes awry inside the ECU? I don't see
> > this would be wiring as I get a consistant reading and have not found
> > of wire damage.
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