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P0401 - EGR flow insufficent
Posted to Technical Discussion Forum on 8/6/2010 22 Replies

Hello,

I'm working on a parts changers vehicle. I have a 1999 Ford Expedition with a 4.6 liter.

The customer has replaced the EGR valve, and replaced the DPFE with aftermarket parts. As well as cut the hoses from the DPFE to exhaust pipe.

I get this thin... Login to read more.

22 Replies Received (View Replies)