Compression Check: Testing and Inspection

Check compression pressure on all 4 cylinders as follows:
1. Warm up engine.
2. Stop engine after warming up.

NOTE: After warming up engine, place transmission gear shift lever in "Neutral" (shift selector lever to "P" range for A/T model), and set parking brake and block drive wheels.





3. Disconnect accelerator cable from clamp.
4. Remove ignition coil cover.
5. Disconnect ignition coil couplers.
6. Remove ignition coils.
7. Remove all spark plugs.
8. Disconnect fuel pump relay coupler.





9. Install special tool (Compression gauge) into spark plug hole.
Special Tool
(A): 09915-64510-001
(B): 09915-64510-002
(C): 09915-64530
(D): 09915-67010





10. Disengage clutch (to lighten starting load on engine) for M/T vehicle, and depress accelerator pedal all the way to make throttle fully open.
11. Crank engine with fully charged battery, and read the highest pressure on compression gauge.





NOTE: For measuring compression pressure, crank engine at least 250 r/min. by using fully charged battery.





12. Carry out steps 9, 10 and 11 on each cylinder to: obtain 4 readings.
13. After checking, install spark plugs and ignition coils.
14. Connect ignition coil couplers.
15. Install ignition coil cover.
16. Connect accelerator cable to clamp.