Help fixing POO31&37 - Subaru WRX Forum
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#1 Old 01-04-2014, 12:44 PM
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Help fixing POO31&37

Both code are popping up after I warmed my car up this morning, How to fix these code? What could have caused this? Should I just go get protuned?

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#2 Old 01-04-2014, 01:08 PM
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check all your fuses and the wiring on and going to your o2 sensors.

Adair
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#3 Old 01-04-2014, 01:38 PM
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Look for the fuse labeled ALT + B
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#4 Old 01-04-2014, 01:40 PM
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If there's no fuses blown or damaged wiring, I would unplug your sensors, turn key on, and check pins on harness with a multimeter. One of the wires should be a heater wire and have voltage. If you have correct voltage its probably your sensor. If you don't then its a electrical problem.

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#5 Old 01-04-2014, 03:05 PM
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POO...don't you pick that up with a pooper scooper?
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#6 Old 01-04-2014, 04:43 PM
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Quote:
Originally Posted by boo-key bear View Post
If there's no fuses blown or damaged wiring, I would unplug your sensors, turn key on, and check pins on harness with a multimeter. One of the wires should be a heater wire and have voltage. If you have correct voltage its probably your sensor. If you don't then its a electrical problem.
No blown fuses, no damaged wires, do you know what the volts r suppose to be?

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#7 Old 01-04-2014, 04:50 PM
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No blown fuses, no damaged wires, do you know what the volts r suppose to be?
That, I don't. Ill take a look and see if I can find out when I get a chance. most likely if it was something electrical you will not be getting any voltage at all.

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#8 Old 01-04-2014, 04:52 PM
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That, I don't. Ill take a look and see if I can find out when I get a chance. most likely if it was something electrical you will not be getting any voltage at all.
I know when I check them on like civics it will show voltage just a different then what is should be but still shows something

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#9 Old 01-04-2014, 05:33 PM
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I found the diagnostic procedure for those 2 codes in my service manual. Now I just gotta figure out how to get it from my computer to here. Im computer challenged.

Adair
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#10 Old 01-04-2014, 06:36 PM
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So the rear o2 wiring isn't hitting up against the driveshaft?

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#11 Old 01-07-2014, 10:51 AM
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Sorry on the late replay Paul, but no it isn't, I finally got my multimete last night back and did all my testing, it is the sensor so I ordered my downstream sensor now I just have to find the upstream sensor

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#12 Old 01-07-2014, 12:53 PM
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Did you get the troubleshooting section from the service manual that I emailed you?

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#13 Old 01-07-2014, 12:55 PM
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Yep! gotta thank you a lot on that Adair!
Really made my life a lot more easy!!!

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#14 Old 01-14-2014, 11:10 AM
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So guys, I changed all the sensors, checked all the wiring and still have the codes.
Talked to tuner and they said they are for sure it is a wiring issue.
Will be bringing my car into a local shop and have them try and fix it for me, I have given up hope doing it myself

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#15 Old 01-14-2014, 12:34 PM
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