HOW DO I KNOW WHICH WIRE IS THE SIGNAL WIRE ON THE O2 SENSOR FOR A ?

2006 Chevrolet Aveo

Tiny

casabenson

September, 9, 2012 AT 8:19 PM

My mechanic said he believes the ecm is shorting out my O2 sensors (3 in two months) I replaced the ecm with a used one but before I put the new sensor in I want to make sure the voltage isn't to high causing it to short yet another one.
Thanks a bunch
Devin

FOUND 165 RELATED QUESTIONS

3 Answers

Tiny

KHLow2008

September, 9, 2012 AT 8:31 PM

ECM don't short out sensors but sensors can cause the ECM to fail. If the quality of the sensor is suspect, they would not last.

There are 2 HO2S, whcih is faulty?

What were the trouble codes you were getting?

Tiny

casabenson

September, 9, 2012 AT 8:42 PM

It is the one above the catalytic converter. The trouble code was O2 sensor bank one. I just have a simple scanner and that's all ti says.

Tiny

KHLow2008

September, 9, 2012 AT 9:38 PM

I need the EXACT code. O2 sensor has 2 circuits in them and if it is the heater side that has faile, the power supply is from battery and not linked to the computer.

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