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quickcar, ASE Certified Technician
Category: Dodge
Satisfied Customers: 1695
Experience:  10+ years chrysler
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What can cause error code p0304, po340 and po138

Customer Question

What can cause error code p0304, po340 and po138
Submitted: 6 years ago.
Category: Dodge
Expert:  quickcar replied 6 years ago.
hello, you got a couple things going on, p0304 is a misfire detected on cylinder 4, P0340 is loss of cam position sensor signal at the pcm,and p0138 is for bank 1 sensor 2 oxygen sensor shorted to voltage. the first thing id recommend is clearing the codes and driveing it and see what ones return, as there are a number of things that can cause those codes and not one fault that i know of can cause all three.

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