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Egr Problems
Ok a while back I had head gaskets, studs, EGR Delete done on my 06 F250, @ 2 weeks after being done check engine light came on:
P0401 Egr Recirculation flow insufficient detected, EGR Valve, EGR position sensor bias, EP Sensor bias
I talked to the mechanic who did the work he said to change the EGR valve so I did, 2-3 days later lights back on with same code.
Anybody got any ideas, also since having all the work done, truck seems to be down on power and no smoke what so ever even with accelerator pump tuned up to 200%, used to smoke like a freight train. Called the machanic he said to bring it in and he would look at it, just havent had time.
Any info is appreciated.
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