My 92 Jetta Carat was an 8V. That being said, you can also try to unplug the
temp sensor. There were two, I don't remember which one, IIRC it was the
blue one. See if this resolves the problem. It turned out the problem was
that the OXS sensor plug got water in it. When I dried it out all was well.
John
----- Original Message -----
From: "Steven Arguello" <[email protected]>
To: "John S. Lagnese" <[email protected]>
Cc: "a2-16v" <[email protected]>
Sent: Wednesday, September 05, 2007 10:13 PM
Subject: Re: [a2-16v-list] OXS problem??
when I unplug it nothing happens, if I ground it, the current goes to
+-20mA, which the Bentley says means the ECU is OK.
I swapped the DPR, Knock box, airbox, ECU and lastly the O2 sensor
w/spares I have and no change.
I imagine the O2 sensor needs a ground. Has anyone ever heard of
grounding problems with the O2 sensor?
I'll pull the sensor and check my soldering....
the O2 sensor wire is shielded. I remember something in the Bentley about
where the shield is grounded but can't find it now. Could a bad shield
have anything to do with it?
thanks again,
Steve
On Sep 4, 2007, at 9:44 PM, John S. Lagnese wrote:
If you unplug it the car should run richer and eliminate the problem, if
the problem is still there its most likely not the OXS.
John
----- Original Message ----- From: "Steven Arguello"
<[email protected]>
To: "a2-16v" <[email protected]>
Sent: Tuesday, September 04, 2007 7:01 PM
Subject: [a2-16v-list] OXS problem??
Ongoing (year+) hesitating/misfire under load. Did all the tests in
the Bentley (again). DPR current 10.3mA no fluctuation. New O2
sensor, and I even tried putting the old one back. Before I buy a 3rd
sensor, I wanted to double check. How is the O2 sensor ground?
Through the pipe/manifold? Any chance that grounding might be the
problem?
thanks,
Steve
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