P0401 again but EGR replaced -- Help
Hi, Have a Alfa GT 1.9 JTDM that had a P0401 error in FiatEcuScan.
Replaced the EGR with one from GSF car parts (pierberg unit).
Two weeks later have the same message again.
Anyone had this happen twice after a new unit ?
Tried the actuation sequence too and you can hear the solenoid clicking on and off, plus when the engine is running and you rev the engine, the EGR state changes.
Observation though after revving the engine and holding at 3000rpm etc turns the EGR on but the percentage of EGR valve opening only ever goes as high as say 40%. Have not tried the engine under load.
Also noted the Engine ECU = 'Programmed' state. - see pic
What does this mean ?
Hope you can help ?