4. INSPECT COMPRESSION
(a) Remove the windshield wiper link.
(b) Remove the front cowl top panel outer.
(c) Set the vehicle to inspection mode
(d) Warm up the engine.
(e) Remove the air cleaner assembly.
(f) Disconnect all the fuel injector connectors.
(g) Disconnect the 4 ignition coil connectors and remove the 4 bolts. Then remove the 4 ignition coils. NOTICE: If inspecting the compression with the ignition coil connector disconnected, a DTC will be detected. After the inspection, check the DTC.
(h) Remove all the spark plugs.
(i) Connect SST (attachment) to a compression gauge.
(j) Install the compression gauge with SST into the spark plug hole.
(k) Connect the intelligent tester to the DLC3.
(l) Turn the power switch ON (IG).
(m) Select the following items: DIAGNOSIS / OBD/MOBD / HV ECU / ACTIVE TEST / COMPRESS TEST
Turn the power switch ON (IG) while depressing the brake pedal. Then, measure the compression pressure of each cylinder. Standard compression pressure: 882 kPa (9.0 kgf/cm2, 128 psi) Minimum pressure: 686 kPa (7.0 kgf/cm2, 99 psi) Difference between each cylinder: 98 kPa (1.0 kgf/cm2, 14 psi) or less NOTICE: • Measure the compression pressure as quickly as possible. • After performing all the procedures, be sure to clear DTCs stored in the memory. Then check that the normal code is output. If the compression pressure is low, pour a light coat of engine oil into the cylinder block, and then measure the compression pressure again. HINT: • If the compression increases after pouring engine oil, the piston ring may be damaged. • If the compression does not change after pouring engine oil, defects may be occurring around the valve.
REMONTAGE:
(o) Install all the spark plugs. Torque:18 N*m (184 kgf*cm, 13 ft.*lbf)
(p) Install the 4 ignition coil connectors. Torque: 9.0 N*m (92 kgf*cm, 80 in.*lbf)
(q) Connect the 4 ignition coil connectors.
(r) Connect all the fuel injector connectors.
(s) Install the air cleaner assembly.
(t) Install the front cowl top panel outer. (u) Install the windshield wiper link.