Fault code P1349 – a step-by-step guide to diagnosing and fixing it

Error code P1349 is displayed and the check engine light is on - what does this mean?

The DTC P1349 is a manufacturer-specific fault code that is recognized by the OBD system and indicates problems with the camshaft/crankshaft position or the variable valve timing. This trouble code mainly occurs in Honda and Acura vehicles and indicates faults in the VTEC system (Variable Valve Timing and Lift Electronic Control).

What can cause this error code?

• Defective VTEC oil pressure switch
• Clogged VTEC oil filter
• Low engine oil level or poor oil quality
• Defective VTEC solenoid valve
• Damaged wiring to the VTEC system
• Defective camshaft position sensors
• Mechanical problems in the VTEC mechanism
• Faulty engine control unit (ECM/PCM)
• Blocked oil ducts in the cylinder head

What symptoms occur in parallel with fault code P1349?

• Loss of power: Significantly reduced engine power, especially at higher engine speeds
• Jerking: Irregular engine running and vibrations
• Poor acceleration: Delayed response when accelerating
• Increased fuel consumption: Engine operates inefficiently
• Engine noise: Unusual knocking or rattling noises
• Exhaust problems: Increased emission levels

How to fix the problem of fault code P1349?

• Repairing fault code P1349 requires a systematic approach to identify the exact cause.
• Check the VTEC oil pressure switch and replace if defective, as this ensures oil pressure monitoring for the VTEC system
• Change the engine oil and VTEC oil filter to remove blockages and ensure proper oil supply
• Remove the VTEC solenoid valve, clean it or replace it completely if it no longer switches properly
• Check the wiring and plug connections to the VTEC system for damage, corrosion or loose contacts and repair them
• Test camshaft position sensors and replace defective sensors
• Have the oil ducts in the cylinder head professionally cleaned to remove blockages
• Check engine control unit (ECM/PCM) for software errors and reprogram or replace if necessary