Vibe FWD L4-2.4L (2009)
7. Remove the EFI Main Relay (1) from the Fuse/Relay Block 1.
8. Install a compression gauge (1) into a spark plug hole.
9. Depress the clutch pedal (on vehicles that are equipped with a manual transmission).
10. Depress the accelerator pedal to the floor for a wide open throttle.
11. Crank the engine through four compression strokes for each cylinder being tested.
Note: The maximum allowable compression pressure difference between any two cylinders is 100 kPa (15 psi).
12. Measure the highest pressure reading on the compression gauge.
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The standard compression pressure is 1,300 kPa (218 psi).
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The minimum allowable compression pressure is 1,000 kPa (145 psi).
13. Repeat the compression test procedures for the remaining three cylinders.
14. Remove the compression gauge from the engine.
15. Install the four spark plugs.
