Egr engine warning light - Alfa Romeo Forum
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(Post Link) post #1 of 3 Old 29-03-12 Thread Starter
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Egr engine warning light

Hello every one, i looking for solution, i got the problem, egr valve error P0404
I plug computer, and it show me EGR valve problem, i replace to new one, plug connector
To valve my engine revolutions start going up and down, i did test drive, no performance was lost but on 1000 rpm when shift gear, lightly touch gas pedal(axelerator) it losing and picking up power, making car shudering, on low rpm. When i disconnect power plug from egr, car works perfect but on panel pops out : engine control system filure, P0404 EGR valve
I got EGR blocling plate, block the egr valve, to stop emissions coming true system
And keap egr pluged in, still p0404 pops out. Any sugestions???
For Alfa romeo 156 2005 tdi m-jet violance

Last edited by Victorkot; 29-03-12 at 10:58.
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156 2.5 v6

this is the 145/6 part of the forum. try the 156 section as they have different engines so the people on there might be able to help you better. hope you get it sorted
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have you checked for any obstructions in the intake, if the amount of fresh air isn't correct it too can give an EGR error. I once found a piece of paper in the intake pipe which was causing a partial blockage which gave an EGR error.

Last edited by automall; 30-03-12 at 08:00.
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