How do I know which wire is the signal wire on the O2 sensor for a 2006 Aveo?

Tiny
CASABENSON
  • MEMBER
  • 2006 CHEVROLET AVEO
  • 280,000 MILES
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
Sunday, September 9th, 2012 AT 8:19 PM

3 Replies

Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
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?
Was this
answer
helpful?
Yes
No
Sunday, September 9th, 2012 AT 8:31 PM
Tiny
CASABENSON
  • MEMBER
  • 2 POSTS
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.
Was this
answer
helpful?
Yes
No
Sunday, September 9th, 2012 AT 8:42 PM
Tiny
KHLOW2008
  • MECHANIC
  • 41,814 POSTS
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.
Was this
answer
helpful?
Yes
No
Sunday, September 9th, 2012 AT 9:38 PM

Please login or register to post a reply.

Sponsored links