I have been living with limp home mode for a while >3000rpm on 2001 E320 CDI
Have found reliable source of getting fault codes and discover fairly common P1470 fault.
I am confident it is not the EGR (welded shut) and I have pressure tested the whole inlet with 20psi from compresor, removed swirls flaps cleaned manifold etc.
Reading all the posts I think it must be either the vacuum system or catalytic converter.
I have checked vacuum hoses and all seem to hold vacuum with my tongue blocking the end. Could I replace the solenoid with the now redundant egr one?
If this doesn't work I will concentrate on exhaust. How will I know if the cat is blocked? Is it an easy job to remove and inspect?
Thanks in advance
Have found reliable source of getting fault codes and discover fairly common P1470 fault.
I am confident it is not the EGR (welded shut) and I have pressure tested the whole inlet with 20psi from compresor, removed swirls flaps cleaned manifold etc.
Reading all the posts I think it must be either the vacuum system or catalytic converter.
I have checked vacuum hoses and all seem to hold vacuum with my tongue blocking the end. Could I replace the solenoid with the now redundant egr one?
If this doesn't work I will concentrate on exhaust. How will I know if the cat is blocked? Is it an easy job to remove and inspect?
Thanks in advance