OH the horror. I have a 1998 ford contour se 4cyl. I am pulling a P1131 and PO171 code. I have fuel pressure between 30 and 45. I have replaced the front O2 sensor the air filter the fuel filter, the spark plugs, cleaned the MAF, replaced intake gaskets and one faulty vacumme hose. Reset the computer and THAT DARN LIGHT came back on! Oh and did teh carb clean test for varience in motor when sprayed over and around vacumme hoses and get no varience. Whats left? Where do I look next to find the problem?
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Thursday, July 21st, 2011 AT 8:29 PM