Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Diagnostic Aids
Check for any recent engine mechanical repairs. An incorrectly timed or incorrectly installed camshaft can cause a DTC P1346 to set. If a DTC P1349 and P1346 are both present, Check for a malfunctioning CMP solenoid valve. Observe Cam Phase Angle and Cam Phase Angle Desired parameters on scan tool are approximately equal. A difference in the two parameters indicates CMP solenoid may be sticking. An intermittent malfunction may be caused by a fault in the electrical circuit of the CMP actuator valve. Check wiring harness and related components for an intermittent condition. See INTERMITTENTS in TROUBLE SHOOTING - NO CODES - 1.8L VIBE article. Information included in freeze frame data can be useful in determining vehicle operating conditions when DTC first set.
NO RELATED
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.