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moonshine
New User
Feb 11, 2009, 6:58 AM
Post #1 of 2
(3646 views)
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2000 ford explorer 4.o lt. v-6 4x4 150 k miles check eng light comes on last for 2 to 4 days after turn off . new cats x 2 , cat senors x 4 checked w/ obv meter ,
light after runing codes , code p0142 ,144 ,said egr valve not working but is . runs rough when lights is on . i am a ex master mechainc and ex master computer
tech . thinking about taking apart the autos computr box and removing CMOS battery out and short the neg and pos so as to reset the cmos back to factory
setting . has any one done this ? or can ant one offer a diff sternoi .
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Loren Champlain Sr
Veteran
/ Moderator
Feb 11, 2009, 4:57 PM
Post #2 of 2
(3641 views)
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Re: check eng light
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P0142 & P0144 are telling you that there is a problem in the EGR system. Not neccessarily (and probably not) the EGR valve, itself. The most common causes of these codes are DPFE sensor and/or plugged passageway. I would strongly recommend you stay away from the computer.
Loren
SW Washington
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