[200q20v] RE: [s-cars] Inlet Air Temp code
t44tq at mindspring.com
Thu Sep 27 20:34:03 EDT 2001
Let me clarify-
I took the connector off of the sensor. I measured resistance
across the two pins in the sensor. Then, just for kicks, I measured
the two female sockets in the connector- that's where I got the
2400 ohm reading.
Does this make sense? Am I looking at a bad wire now? Damn.
From: Derek Pulvino [mailto:dbpulvino at hotmail.com]
Sent: Thursday, September 27, 2001 7:21 PM
To: t44tq at mindspring.com; s-car-list at yahoogroups.com;
200q20v at audifans.com; quattro at audifans.com
Subject: RE: [s-cars] Inlet Air Temp code
My only response at this time is..."what the?" Can't think of any reason
why the resistance at the pin out would be different that at the sensor
itself. Don't imagine they used a wire with resistance, or installed a
built in resistor, but I'm not an electrical engineer.
Do you have the wiring diagrams?
>From: "TM" <t44tq at mindspring.com>
>To: "Derek Pulvino" <dbpulvino at hotmail.com>, <s-car-list at yahoogroups.com>,
> <200q20v at audifans.com>, <quattro at audifans.com>
>Subject: RE: [s-cars] Inlet Air Temp code
>Date: Thu, 27 Sep 2001 17:06:36 -0400
>Checked the sensor- 576 ohms on a still warm engine. Sounds like it is
>in spec. I inspected the connection and it looks fine as well- the sensor
>is the gold-plated kind, no corrosion to speak of.
>BTW- the resistance between the two pins on the harness side was
>2400 ohms or thereabouts- sound normal?
>Now what do I do? Any suggestions?
>From: Derek Pulvino [mailto:dbpulvino at hotmail.com]
>Sent: Thursday, September 27, 2001 4:12 PM
>To: t44tq at mindspring.com; s-car-list at yahoogroups.com;
>200q20v at audifans.com; quattro at audifans.com
>Subject: Re: [s-cars] Inlet Air Temp code
>I've had this problem on my 200 since day one. It's the fault code that
>doesn't go away.
>When I had the fault code showing, and some gumption to do it, I checked
>ohms on the sensor as related to temp. It checked out fine. Like Scott
>says, just be sure to unplug the ECU harness before checking resistance to
>make sure your only measuring the sensor. I thought maybe there was a
>in the wire somewhere, but haven't sourced it out as of yet.
>As to the connector issue, the connectors are soldered onto the temp sensor
>and the wire. My guess is at the end of the replacement, you want to mimic
>the factory setup as close as possible; connectors solder to the wire, then
>connectors soldered to temp sensor.
> >From: "TM" <t44tq at mindspring.com>
> >To: "S-Car-List" <s-car-list at yahoogroups.com>, "200q20v Mailing
> >List" <200q20v at audifans.com>, "Quattro List"
><quattro at audifans.com>
> >Subject: [s-cars] Inlet Air Temp code
> >Date: Thu, 27 Sep 2001 15:54:27 -0400
> >Just wondering- do all turbo quattros get this code on a
> >regular basis? My 5ktq did the same thing, now the 200q does
> >it as well.
> >Time to break out the multimeter and the Bentley and do some
> >testing. I don't exactly understand SJM's comment on this one-
> >does the replacement sensor require that you cut off the old
> >one from the wiring harness, crimp/solder a new connector and
> >then the sensor, or is it a simple plug-in procedure?
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