SPONSORED LINKS

2001 Chevy Blazer 02 SENSOR

Tiny
JSNAP001
  • MEMBER
  • 2001 CHEVROLET BLAZER
  • 6 CYL
  • 4WD
  • AUTOMATIC
  • 90,000 MILES
I brought my car in for a prewinter antifreeze flush/fill. Several days later the engine began to run irregullarly and the check engine light began flashing. I put the code reader on the car and it showed the following: P0306 - Cylinder 6 Misfire Detected, P0155 - O2 Sensor Heater Malfunction (Bank 2 Sensor 1). Could the problems be caused by something they did during the flush/fill or is it just coincidence? I'm assuming that the cylinder misfire is simply a result of the O2 sensor problems, am I correct in looking to replace them?
SPONSORED LINKS
Saturday, November 29th, 2008 AT 11:35 AM

1 Reply

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 108,117 POSTS
Hi:
I doubt the miss is from the prior service unless the did something purposely. As far as the random missfire, the O2 sensor may cause the problem. I would start there first to see if the problem is resolved. However, there may be other problems such as a bad spark plug which is causing the O2 sensor to react to unburned fuel. Or it could be a different ignition problem. Try the O2 sensor and see if it helps. Let me know how it goes.

Joe
SPONSORED LINKS
Was this
answer
helpful?
Yes
No
Saturday, November 29th, 2008 AT 5:05 PM

Please login or register to post a reply.

Related Oxygen Sensor Replace/Remove Content

Oxygen Sensor Replacement
VIDEO
Oxygen Sensor Replacement
Instructional repair video
Oxygen Sensor Replacement
GUIDE
Oxygen Sensor Replacement
An oxygen or lambda sensor is used to determine the engine exhaust mixture which can then be controlled by the computer. These sensors are equipped with a heater that can...
VIEW MORE

Sponsored links