99 e250 trouble codes
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Tuned
Joined: May 2010
Posts: 309
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From: Wilsonville,Oregon
99 e250 trouble codes
just bought a 99 e250 ext cargo van.
ran the obd2 and got these codes, can some one tell me what they are and how to fix?
thanks
P1406: Differential Pressure Feedback Electronic Sensor circuit Downstream Hose
p0442:Evaporative Emission Control System Leak Detected (small leak)
p0171
ran the obd2 and got these codes, can some one tell me what they are and how to fix?
thanks
P1406: Differential Pressure Feedback Electronic Sensor circuit Downstream Hose
p0442:Evaporative Emission Control System Leak Detected (small leak)
p0171
Last edited by wizzy214; Jan 1, 2012 at 08:55 PM. Reason: '''
Senior User
Joined: Feb 2004
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Was your P1406 resolved?
The most common problem when getting a P1406 is the DPFE located on the drivers side of the engine.
But, I'm getting a P1406 and it's not caused by the DPFE so I was wondering if you might have found what was causing yours.
But, I'm getting a P1406 and it's not caused by the DPFE so I was wondering if you might have found what was causing yours.
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Tuned
Joined: May 2010
Posts: 309
Likes: 1
From: Wilsonville,Oregon
yeah, i was a quart low on diff fluid. filled it back up and it cleared code.
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Joined: Feb 2004
Posts: 224
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I actually think it might be just what the code says, a plugged downstream line. There is an orifice in the Manifold to EGR Intake Tube Assy that allows a certain amount of exhaust gas to be vaccumed into the EGR assy. If that corrodes or gets plugged, you will throw a code since the differential pressure becomes too high on exhaust side. The nut / bolt at the exhaust manifold is pretty corroded. Looks like it will fall apart if I put a wrench on it. Can't find an online price for that tube (item 10 in some engine exploded views) so I just asked a parts person (my son) today for the pricing. I need the van to pull a trailer so I don't want to touch it unless I have a replacement available.
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