OBD Code P0172 2002 Villager

2002 MERCURY VILLAGER
55,000 MILES
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KENBJ91
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  • 5 POSTS
runs good cold as it warms up it runs rough and sometimes stalls at stop lights.
Dec 23, 2011 at 10:50 AM
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FIXITMR
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could be oxygen sensor issue.
Dec 23, 2011 at 11:01 AM
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FIXITMR
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also get MAF sensor cleaned.
Dec 23, 2011 at 11:04 AM
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KENBJ91
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MAF sensor has been cleaned twice
have not checked O2 sensor
Dec 23, 2011 at 11:21 AM
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KENBJ91
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can you check o2 sensor on the car?

thanks ken
Dec 23, 2011 at 12:17 PM
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FIXITMR
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with the right equipment you can.
Dec 23, 2011 at 9:07 PM
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KENBJ91
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fixitmr;

guess i'll have replace the 02 sensor I'll let you know what the out come is.

thank you much Ken
Dec 24, 2011 at 6:36 AM
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MHPAUTOS
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ensure no exhaust leaks up stream of the O2 sensor and that the plug gaps are correct, often a tune problem can trigger this code.
Dec 25, 2011 at 12:15 AM
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KENBJ91
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exhaust is stainless is ok. did not know that a bad tune up could cause this problem. just had a tuneup about 100 miles ago. but it was running rough before the tuneup.and stalling. thanks for the info. Ken
Dec 25, 2011 at 7:56 AM
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