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Hi,

Before I start...this is a 2000 non-S with 34K. I never have gotten any code but P0134.

I am getting an occasional CEL and when I scan the car I see only code P0134. If I do nothing the code always clears itself in about 2 hours of driving. I may be imagining this but it seems to occur when I start the car and only have it run for a few seconds like when I pull it out of the garage and then restart the car and start driving. It also is always low speed when it comes on. I have read other posts and seen where Loren posted the following causes for the code...

P0134 Oxygen Sensor Ahead of TWC, Bank 1 – Interruption of Signal

Possible causes:

– Wiring harness

– Oxygen sensor

– DME control module

My mechanic looked at it for any obvious signs of harness problems and said he saw none. So, what should I do? Wait and see? Replace the sensor?

Also, does anyone know how ling it takes for the computer to reset the CEL after the P0134 illuminates it?

Jon

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The sensor has a test diagnostic (voltage should read between 100 and 800 mV, ohmmeter on pins 1 & 2 should read 1.8-2.5 ohm, pin 1 to sensor housing should read infinite ohms ), test it to see if it is good or not; if it checks out, you probably have a wiring issue elsewhere.

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