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Discussion Starter #1
P1139
Front oxygen (A/F) sensor #1 heater circuit performance/range problem..

Ive gotten this code 3 or 4 times in the last 2 months maybe and I have absolutely no Idea where to start?? What does this even mean??

Thank You guys in advance :)
 

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Super Moderator (Actually a SuperSpy)
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29,205 Posts
The front sensor is working intermittently. This is the worst kind of thing to troubleshoot. Check the wires and the sensor itself.
 

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6,501 Posts
Probably time for a new front O2 sensor
 

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Premium Member
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15,697 Posts
Do not get a universal sensor, it is pissing money in the wind.
 

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Discussion Starter #5
mycologist you always help me with all my problems! haha thank you I really appreciate it!
Thank you guys for your help :)
 

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Welcome, I'm glad it has been some assistance. :)
 
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