Another variable vane turbo problem!

turboRemoved,dismantled turbo ,gave it a good clean,refitted carried out regeneration ,road test. burst EGR coolant pipe.

p0234  the turbo could be at fault as the vanes stick on the variable vane turbo causing a over boost situation,the variable vanes are part of the turbo ,there are a few issues that can cause overboost.

a split turbo pipe or intercooler
a vacuum pipe leak
a faulty or dirty boost sensor

map sensor
a worn vacuum pump

boost control solenoid

Leave a Reply