Error code help 1996 T-Bird
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Elder User
Joined: Aug 2005
Posts: 747
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From: Mesa, Arizona
Error code help 1996 T-Bird
Can anybody give me some ideas where to start, I'm getting a P1151 - Lack of HO2S21 Switch- Sensor Indicates Lean. Any help would be greatly appreciated. Thanks in advance.
Laughing Gas
Joined: Aug 2004
Posts: 964
Likes: 1
From: Roseburg, OR
That means that either the Oxygen sensor on bank 2 (right side, I think...) is either not reporting at all, or reporting a lean condition that the computer can't compensate for.
I think I'd first check to see if something has happened to the wiring pigtail at the sensor. If it is fine, it might just be time for new O2 sensors, especially if they came with the car.
I think I'd first check to see if something has happened to the wiring pigtail at the sensor. If it is fine, it might just be time for new O2 sensors, especially if they came with the car.
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Elder User
Joined: Aug 2005
Posts: 747
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From: Mesa, Arizona
Well, I cleaned the MAFS, at the time I had no check engine light. I went to emissions testing and passed! Got half way back home and the check engine light came on again. I will check the wiring to the O2 senors today. Thanks for the help!
Cheers!
Cheers!
