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139 Posts
Discussion Starter #1
I have the code p0031, p0037 and p0051, p0057 on for each sensor. It says by the code, heater control circuit low. What would be the issue for me to get all four oxygen sensor codes? I was skimming through the troubleshooting manual but no way I'll be able to skim through 1300 pages to find the one I'm looking for. If someone can please throw me some ideas, that'd be wonderful. Thanks!
 

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139 Posts
Discussion Starter #3
It's a vehicle I'm trying to buy that has this problem. I believe they came on at the same time. I will clean the maf, check for vacuum leaks and the check power and ground to the sensors. Just not too sure the ohms they should be reading.
 
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