My vr has been over fuelling lately running rich and lumpy. Plugged into vagcom and it come up error code for crank sensor. So ordered one using my number plate number. Had a few problems with parts for my car as it's a 95 plate everything is obd1 apart from the obd2 16pin plug so I think it was built half way though the change. I removed the sensor too find a metal sensor with the oring in a recess in the block, the new plastic sensor has an oring on the plastic and does not seem too fit. Anyone had this problem, Thanks in advance