Compression Check
Check compression pressure on all 4 cylinders as follows
Scheme 123
Scheme 124
- Warm up engine.
- 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.
- Remove ignition coils and all spark plugs, referring to «REMOVAL»(ref-268902-S29441137252007102700000) .
- Disconnect fuel injector wire harness at the connector.
- Install special tool (Compression gauge) into spark plug hole. Special Tool 09915-64512 09915-64530 09915-67010
- Disengage clutch (to lighten starting load on engine) for M/T vehicle, and depress accelerator pedal all the way to make throttle fully open.
- 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. If measured compression pressure is lower than limit value, check installation condition of special tool. Compression pressure Standard: 1400 kPa (14.0 kgf/cm 2 , 199.0 psi) Limit: 1100 kPa (11.0 kgf/cm 2 , 158.0 psi) Max. difference between any two cylinders: 100 kPa (1.0 kgf/cm 2 , 14.2 psi)
- Carry out Steps 5 through 7 on each cylinder to obtain 4 readings.
- After checking, install spark plugs and ignition coils, referring to «INSTALLATION»(ref-268902-S02014904302007102700000) .
- Connect injector wire harness at connector.
- Install air cleaner assembly, referring to «INSTALLATION»(ref-268922-S40663716002007102700000) .