You had not said the vw was putting out black smoke, Go to the air intake check the sensor inside the air intake. See if there is a buildup of carbon. Sometimes the air intake sensor gets clogged with car
bon and sends a signal to the ecu for more fuel pressure. Sometimes this can be fixed by using a throttle body cleaner to clean out the throttle body. If you decide to do this make sure you follow the instructions. Also check all the wires going to the sensor making sure they are connected and making good contact.
Tuesday, November 2nd, 2010 AT 9:11 AM