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Old 11-15-2010, 05:33 PM
mhtranger mhtranger is offline
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Default Well that didn't fix it

Posted this in another forum and thought why not here too.

Quick story, truck has had cel on for quite some time now. Showed p0171,p0174 and p0401. So after checking all vacuum lines and hoses and spraying carb cleaner on the intake and finding everything ok I start searching and find that those codes go hand in hand with the dpfe,egr. So what do I do? Of course I went and bought a new dpfe. Cleared the codes and drive it throught two cycles and on my way home guess what shows back up? Right, cel!!! Now I guess I have to TRY to get the rusted egr and pipes off my rusted manifold.
Any body have any other ideas? I'm at a loss and dont want to spend all that money for egr stuff.

95 4x4 4.0l auto
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Old 11-15-2010, 09:12 PM
angelomm angelomm is offline
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Posts: 20
Default Re: Well that didn't fix it

hmmmmmmm....the cancer of Ford motors.......if the dpfe sensor didnt cure it you have a few more options before you target egr......make sure there is no air leaks around the MAF sensor....also no contamination on the MAF..(do not use brake clean to clean if you do pull it) if you own a scanner with data stream check your 02 cross counts......sometimes people tend to overlook fuel also in this situation...check your fuel pressure and also pull the vacuum line of the regulator and make sure theres no gas in the vacuum line...also I have seen where collapsed pcv rubber hoses..or broken elbows have thrown the lean codes...make sure you spray in the corners and the back of the intakes one more timeeeeeeeee..hitting all corners with the carb clean before you go after the EGR...good luck!
2001 Ford Ranger Edge
1.5 Wheel Spacers
2' rear shackles
3 inch body lift kit
Cold air intake
Side exit exhaust
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