1998 volkswagon jetta check eng light

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

Reply to
dillon.murpdill
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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.

Reply to
jfrancis311

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