Checking VVT Oil Pressure

CHECKING VVT OIL PRESSURE

This test can be used to help diagnose VVT faults.





1. Disconnect and remove oil pressure sensor (1).





CAUTION: Threads in block are 1/8"-28 British Standard Pipe (BSP). Do not install a National Pipe Thread (NPT) threaded adapter, this could crack the cylinder block.

2. Install an 1/8-28 BSP male to 1/8-27 female threaded adapter (2).
3. Install oil pressure gauge (1).
4. Start engine and record oil pressure.

CAUTION: If oil pressure is 0 at idle, do not perform the 3000 RPM test

5. If oil pressure is 0 at idle, shut off engine. check for pressure relief valve stuck open, a clogged oil pick-up screen.
6. Remove oil pan and inspect for debris.
7. Remove oil pressure relief valve and inspect, if damaged replace pressure relief valve.
8. If pressure relief valve is ok, replace balance shaft module assembly.




9. After test is complete, remove test gauge (1) and fitting (2).




10. Install oil pressure sensor and electrical connector.