Hi andybean,
Thank you for the donation.
Erase the trouble codes, test drive vehicle and retrieve the trouble codes again. Let me know if they are the same and in which order.
P0340 = Camshaft position sensor malfunction.
P1312 = Combustion detection cylinder 1+2 , open/short circuit to B+.
P1334 = Combustion detection cylinder 3+4 , open/short circuit to B+.
The camshaft position sensor is the more likely cause.
Sep 15, 2010 at 7:46 AM