egr problems

[magentalic]

i am still having problems with my c 220 cdi,if i disconnect the plug from the egr it stops the missfire and runs better,the problem is the em light comes on.
my question is if i remove the arm that operates the valve that opens/closes and blank the egr off with a plate.so the egr thinks it is operating correctly but in effect it is not.like peddling a bike without a chain.
should this work,what do you think??

 

[400ixl]

Have you taken the EGR valve off and cleaned it up and checked it is working as it should do?

Removing the arm I doubt will stop it throwing an error.

 

[magentalic]

yes i have cleaned it but when it is ticking over it is up and down from 5% to 43% and it makes the car miss.

 

[bob6600]

i am still having problems with my c 220 cdi,if i disconnect the plug from the egr it stops the missfire and runs better,the problem is the em light comes on.
my question is if i remove the arm that operates the valve that opens/closes and blank the egr off with a plate.so the egr thinks it is operating correctly but in effect it is not.like peddling a bike without a chain.
should this work,what do you think??

Not it won't because the MAF will pick up the incorrect readings and throw it into limp mode

 

[magentalic]

i am surprised it has not gone into limp mode now,as it is disconnected

 

[giusepppe]

there is a mod that has been used to overcome this, discussed on mb owners club