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Chad N
Dodge Dakota
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1/20/2005
10:56:27
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 Subject: P0171 Code
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Message:
Anyone have experience correcting a P0171 engine code?
This is listed as a lean air/fuel mixture and has been indicated by an abnormally rich correction factor.
Poor gas mileage, bad smelling exhaust and black smoke out the tail pipe are some of the symptoms.
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Crow318
Dodge Dakota
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1/20/2005
11:49:03
| RE: P0171 Code
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Message:
“This is listed as a lean air/fuel mixture and has been indicated by an abnormally rich correction factor.”
With the smell you are obviously not running lean. The correction factor is determined by the O2 sensor(s). I would replace some or better yet, all of them. Do it soon or you will wreck your CAT, if you haven’t already (cause it doesn’t take much)
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?
Dodge Dakota
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1/20/2005
11:49:42
| RE: P0171 Code
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Message:
Sounds like bad 02 sensor
or leaky injector/s
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JasonB
Dodge Dakota
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1/20/2005
20:19:41
| RE: P0171 Code
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Message:
If that does not help, consider having the fuel pressure checked. The odor is possibly caused by an overcompensation for an actual lean condition. This lean condition could be the result of a fuel pump with low volume output.
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