[s-cars] Troubleshooting suggestions?
Rich Assarabowski
konecc at snet.net
Mon Nov 24 17:54:03 EST 2003
Agree, I had the same symptoms when I bought my '92 S4, new O2 sensor
cleared it up and it ran like a bear after that! Get the aftermarket
Bosch sensor (not the OEM), it's exactly the same thing except it
doesn't have the connector -- much cheaper. If the fuel filter hasn't
been replaced for a while, do that while you're it, cheap insurance for
plugged fuel injectors.
-- Rich A.
'92 & '93 S4
PS There's a VW/Audi tool to remove the O2 sensor, makes it easier
(12-point socket with offset drive). It might need a lot of torque to
get it to move if it's never been replaced before.
>Don't forget your O2 sensor. You have the classic symptoms of a failed
O2 sensor. Has it ever been replaced? If not at >96k it's definitely
time anyway.
>>For the first time in 16K miles of ownership, my '95.5 S6 is
encountering a
>>bit of a problem. (95.5 S6, 96K miles, no significant engine mods)
>>Starting about a month ago, I noticed that the motor was hesitating a
bit
>>under load at lower RPMs (~1600-2000). More recently, under full
throttle
>>accelleration I've noticed the motor isn't running optimally. The S6
will be
>>accellerating fine, just up to the point where it would usually engage
that
>>last wonderful rush of power, and like someone flicked a switch, the
power
>>decreases and the exhaust note and vibration level becomes noticably
rougher.
>>This error condition goes away just as abrubtly if I let off the
throttle a
>>bit.
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