CK Engine light and code P0133
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 3,394
Likes: 12
From: Leon Iowa
St. Jude Donor '06-'07-'08-'09
CK Engine light and code P0133
I checked it and it said "heated Oxygen Sensor Slow responce bank 1 sensor 1" Anybody know what would cause this??
Instructor
Joined: Nov 2001
Posts: 175
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From: St Louis MO
It could be just a dirty or loose connection on the O2 sensor wire. Or it could be a bad O2 sensor. I think the O2 sensor has an electric heater element in it so that the engine can use more efficient/ emission friendly mixture settings when the vehicle is cold instead of having the wait for the O2 sensor to be fully heated by just the exhaust stream. I would check to make sure the connections are clean and reset the code, it may never come back. If you have a scan tool there is a whole procedure to check the voltage to the O2 sensor.
Thread Starter
Melting Slicks
Joined: May 2005
Posts: 3,394
Likes: 12
From: Leon Iowa
St. Jude Donor '06-'07-'08-'09
Originally Posted by yogi78
It could be just a dirty or loose connection on the O2 sensor wire. Or it could be a bad O2 sensor. I think the O2 sensor has an electric heater element in it so that the engine can use more efficient/ emission friendly mixture settings when the vehicle is cold instead of having the wait for the O2 sensor to be fully heated by just the exhaust stream. I would check to make sure the connections are clean and reset the code, it may never come back. If you have a scan tool there is a whole procedure to check the voltage to the O2 sensor.
