Question about 2002 Ford Taurus

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Having more codes after I thought I fixed the missfire

I had a miss fire on cylinder one. I have replaced the fuel injector, spark plug, and wires for my 02 ford Taurus and have changed out the EGR valve/sensor ( I got a code for this after I changed the injector). I thought I had the problem solved but now I am getting a P0172 Code Adaptive fuel to rich and the other misfire code has come back. What should I do to fix these? Is it possible that when I took the upper intake manifold off the second time I did not line up the gaskets and would this cause the problem? I have also visually inspected the vacuum lines and found no cracks in them but could this still be the cause?

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Some time when you take off the intake manifold you have to replace the upper gasket and i would take it apart again to make sure you have the gasket line up try these websites and www.alldatadiycom and the other one is

Posted on May 31, 2009

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