Question

1999 Cadillac DeVille with P0340 code, what is the fix?

Answer 1

Hi there,

Typically to resolve this problem you will have to replace the cam position sensor on bank 1. You may also have an actual mechanical timing issue causing the problem as well.

Answer 2

P0340 Cadillac Code - Camshaft Position Sensor Circuit
Read more: https://www.autocodes.com/p0340_cadillac.html