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poorwomen, 2.3L 4 Cylinder, Virginia Beach, VA, October 12, 2009, 03:07
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Thanks autotechpat,but what I was asking was with the work, that was done to the manifold and the pvc values, that were replace, should I be having the" possible problem" listed in earlier reply?

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    patrick mannion from Greg Solow's Engine Room, October 12, 2009, 19:38
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    I remember answering a question concerning a lean code P0171 and that you had intake manifold replaced along with a PCV valve and hose replaced, these issues could certainly cause a lean misfire, rough running, poor fuel economy and higher than normal pollutants emitted from the tailpipe. Other causes for this code could be a defective air flow meter or intake manifold sensor, bad Oxygen sensors or several other issues. I am not sure if your question is "were these repairs necessary as you had been hearing a noise from the rear of the vehicle". The repairs you mention certainly could contribute to the lean code stored. A lean code on vehicles that have the evaporative emission charcoal canister at the rear under side of the vehicle could easily set a lean code if the canister was damaged due to contact with road debris.
    Send me an email directly if you have a question, (Just put Repairpal in the heading)
    patrickmannion1@netzero.com

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