P0401 Egr Problem

[samil696]

chrysler grand voayager 2001 2.4 manual transmission  320000km

my dad bought it when it was new

 

i got code p0401 and engine warning light is on

there is no hole behind the egr valve in cylinder head  where exhaust fumes should come trought

it is solid aluminium in middle of the egr mounting bolts where the hole should be

i think that they forget to make hole in it in factory

what to do? should i drill hole in it ?

sorry for poor english

[gordy]

EGR gas supply is from the exhaust outputs of the 4 cylinders. Through supply via EGR then goes into the intake manifold where it is mixed. So for any ports/holes into the cylinder head for a special EGR valve there would need to be 4 x 2.....Kinda silly eh...

[samil696]

https://plus.google.com/photos/100921641706358900435/albums/6326443624837896369/6326443626844022594

hole should be in middle of the bolts

[gordy]

Yip looks like a mounting position for summit.

[bignev]

i would try cleaning the egr valve and passage ways first. I presume it is driving differently, down on power or in limp mode?

 

On some older cars blanking off the egr can improve power, but not legally for emissions. Newer ones would probably need reprogramming.

If the valve is sooted and sticking it could be giving the ECU a headache.

 

After that amount of time and miles the problem is absolutely NOT related to drillings that are missing.

Edited September 6, 2016 by bignev

[QinteQ]

Looks like a 'blanking plate' to me - enjoy the extra performance and miles per gallon !

[samil696]

power is down like 150hp to 100hp when engine warning light is on 

no need to clean it is like new from the inside
i tried vacuum pump and valve opens and closes normally
all hoses and pipes are clean also
if i remove fault code its come back in 1-30 days