2002 Ford Explorer Emission Codes

2002 FORD EXPLORER
118,000 MILES • 6 CYL • 2WD • AUTOMATIC
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WENDY J
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I have a 2002 Ford Explorer that has failed emissions. the codes that come up are P0141, P0442, and P1401. Seems to be running okay except once in a while it loses power at take off and then it comes right back. Also, I noticed that when it's cold outside the car will run hot after warming up. Once the heater is turned on, it goes back to normal. I need to get these codes fixed and don't really have the $$ to go to the dealer. Is this an easy fix, and can i buy these parts at a part store or just the dealer?
Dec 28, 2007 at 2:44 PM
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BLACKOP555
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P0141 means bank one sensor two is bad, this usually means you have a bad o2 sensor or bad catalytic converter.

P0442 means Evaporative Emission Control System Leak Detected (small leak) and you should in turn change the fuel cap with a DEALER OEM PRODUCT. also check the vaccum line going from the tank to the charcoal canister. you may also need a new charcoal canister.


P1401 means DPF EGR sensor circuit was showing high voltage. It is a common failure for fords is the dpfe sensor it can cause overheating also and failing a emmision test due to NOx
Dec 28, 2007 at 8:20 PM
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