1997 Chevy Cavalier Code PO134

Tiny
SCOTTSBAYGIRL
  • MEMBER
  • 1997 CHEVROLET CAVALIER
  • 4 CYL
  • 2WD
  • AUTOMATIC
  • 225,000 MILES
Code PO134 appears, comes back even after changing O2 Sensor
Saturday, February 6th, 2010 AT 4:38 PM

3 Replies

Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

You will need to check the circuit back to the ECU, I feel that this is a wiring fault.

Mark, mhpautos
Was this
answer
helpful?
Yes
No
Saturday, February 6th, 2010 AT 4:43 PM
Tiny
SCOTTSBAYGIRL
  • MEMBER
  • 2 POSTS
It's fine untill engine reaches operating temperature then the PO134 code comes back again
Was this
answer
helpful?
Yes
No
Saturday, February 6th, 2010 AT 4:50 PM
Tiny
MHPAUTOS
  • MECHANIC
  • 31,937 POSTS
Hi there,

P0134 Oxygen Sensor Circuit No Activity Detected (Bank 1 Sensor 1)

I would still be checking the continuity back to the ECU as you say the sensor has been replaced, otherwise you may be looking at an ECU internal fault.

Mark, mhpautos
Was this
answer
helpful?
Yes
No
+1
Saturday, February 6th, 2010 AT 8:20 PM

Please login or register to post a reply.

Sponsored links