Possible Cause
WARNING: This page is about a different car, the 2003 Mazda 6. However, it is still accessible from the selected car via links, so may be relevant.
Possible causes are:
- Loose timing belt or improper valve timing due to timing belt slippage.
- OCV malfunction Low engine oil pressure Spool valve in OCV is stuck in retard position.
- PCM malfunction.
- Variable Valve Timing (VVT) actuator is stuck in retard position. Following oil runners are clogged or have leakage:
- Oil runners, between oil pressure switch and OCV
- Between OCV and VVT actuator
- In VVT actuator