trouble with blockage in the EGR supply pipe?

or..

The most common failure is the vacuum modulator, remove the plastic top and look for a burned spot on the filter inside, if there is replace it, the problem with the vsv is that they tend to have intermittent problems so we always replace them when the modulator leaks. When checking the modulator make sure no air passes through from the bottom port with the valve removed blow at the bottom port, if air goes through replace it.


Google!!! Woot!!