re. Wont rev above 1500 RPM then cooled, continued.

[ben swann]

Did you replace the Multi-Function Temp sensor (MTFS) on the bottom of
the cooling neck, or the sending unit for the temp guage?  The error is
a bad MTFS.

Ben

Date: Sat, 07 Jun 2003 14:34:56 +0200
From: Leif Karlsson <leif.karlsson at mbox332.swipnet.se>
Organization: Disorganization
To: quattro <quattro at audifans.com>
Subject: Wont rev above 1500 RPM then cooled, continued.


Ok, Im still having trouble with this one.

I have checked the idle switch: Works just fine.

So I pulled the error codes. It told me that the temp. sensor is bad. I
also got an error code that I don't recognize: 3434 (or possibly, 4343),
anyone know what this on is about? Anyway, the last one don't seem to
appear again.

So I replaced the temp. sensor, still no good: The old one was
definitely bad, the new one however gives me correct readings (about
2500 then cold and ~300 then warm) but the ECU still tells me that the
temp. sensor is bad... And it doesn't run like it should then cooled, if
anything it runs worse like there wasn't a temp. sensor at al.

Bad wiring comes to mind, is there a good way to test if the ECU signal
gets through al the way to the temp. sensor? Or is there something else
that can make the ECU think that the engine is warm then it really isn't
and therefor make it believe that the temp. sensor is bad?

Any ideas are welcome.

Best regards,

Leif