Question about 2002 Ford Mustang
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Posted on Jan 02, 2017
SOURCE: Code #P0171 & code #P0174
The most common problem on a Ford with these codes is deteriorated PCV hoses. Check the hoses from the PCV valve to the intake manifold. Pay special attention to the rubber elbows. They often crack on the inside curve and the crack is hard to see.
Posted on May 22, 2008
SOURCE: check engine light
this is very common on these. the upper intake seals leak and should be replaced. It is not a noticable vacuum leak and is usually worse when the engine is cold. It is not a very difficult job to do
Posted on Mar 01, 2009
SOURCE: 1999 F-150, approx 123k miles,
Start with the cheap and easy fix attempt first. Inspect for a disconnected air hose. Next, the Mass Airflow sensor may need cleaning due to an air filter having not been properly seated and allowing debris to get past the filter. Or even the use of a oil ype air filter can cause this. The screen gets the wings of flies or oil caught on it and an uneven flow of air causes the sensor to read things incorrectly. Cleaning can easily be done with a good rinsing of warm water in the kitchen sink then blow dry before reinstall. If it is oily use an electronic cleaner to remove the oil deposits. If the problem codes still return look more closely for a leak at a manifold gasket. If still nothing then on the fuel delivery side of things your fuel pump may be failing.
Posted on Oct 02, 2009
The resistance at the MAF sensor should be lower than 16k ohms between the A and F terminal. If it is, then the sensor is ok. Measure voltage at the F terminal (harness) should be 5V. If all is ok it MAY need a pcm, but I would have a professional shop ck it first.
Posted on Dec 31, 2009
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A code P0113 may mean that one or more of the following has happened:
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