We have tuned up the 1998 volkswagon jetta and changed oxy
sensors,however after driving 25 miles the check eng light comes on
with a p0442 code . can you help
jfrancis311@gmail.com - 23 Aug 2007 02:25 GMT
You either need to do some testing or take it to a shop that can
handle these vehicles. They have problems with the LDP pumps.