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Old 06-22-2020, 03:51 PM #16
Yisroel K Yisroel K is offline
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1999 4runner
What should my a/f sensor ohm reading be?
Mine is at 15
I have error code p0171, System lean
The truck is running very rich.
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Old 06-23-2020, 12:14 AM #17
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Is there a way to clean the sensors?
Is there any tests to be done before just replacing the sensor and not know what it is?
You can try soaking the sensor in Acetone overnight (nail polish remover if your girl like to paint her nails) and that can help. Worth a shot if you're tight on funds.
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Old 06-23-2020, 01:04 AM #18
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Originally Posted by gamefreakgc View Post
You can try soaking the sensor in Acetone overnight (nail polish remover if your girl like to paint her nails) and that can help. Worth a shot if you're tight on funds.
That seems like a cheaper way. Ithink I'm going to try that First , will let you know what happens.
Ever had check engine light with p0171?
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Old 06-23-2020, 04:47 PM #19
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That seems like a cheaper way. Ithink I'm going to try that First , will let you know what happens.
Ever had check engine light with p0171?
Yes several times. It normally means you have a vacuum leak but with an O2 sensor hanging out in the free air I'm guessing that's the problem. If not, check out Eric the Car Guy's vacuum leak check video on Youtube, only costs a $3 can of carb cleaner to check.
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