Re: Help on the road, code 2342

[John Francis Duncan <jduncan@winstar.com>]

Brett,

Thanks for the response, if it is the O2 sensor I won't worry too much
until I get home.  Here are some symptoms:

	- very bad surging during light acceleration (worst between 2000-3000RPM)
	- very smelly exhaust, especially after climbing a hill or other high
torque driving.
	- gas mileage has been poor
	- idle has been rough 

This week I used contact cleaner on all ECU connectors hoping that it was a
bad contact.  I'm rechecking the connections.

-jfd
jduncan@winstar.com
'95 90 Quattro

>I don't know if this will, help, but in case you don't get any responses,
>this is something to go on, perhaps.  For the 1991 200q20v:
>2342
>              Oxygen Sensor (1991 200TQ 20V Motronic)
>              Sensor Wiring or Sensor defective
>              Heat resistor in sensor defective, Signal wiring shorted to
>ground, Fuel tank empty, Ignition system component failure, air leak at
>mass air flow sensor, air
>              leak in exhaust pipe before catalyst, poor engine ground wire.
>              Symptom: Emissions not within specifications
>
>
>What are some of the symptoms?  Has gas milage gone downhill?  Idle rough?
>Emmisions particularly smelly/different smelling?  No power?  Give us
>something else to go on.  Among other things, the ECU's self-diagnostics
>aren't always great; 200q20v Motronic units see a defective wastegate valve
>as a bad throttle sensor.
>
>
>Brett