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Engine Compression

Check engine compression at specified cranking speed, with engine at normal operating temperature, all spark plugs removed and throttle wide open.

ENGINE COMPRESSION RATIO

Application Specification
Accord
2.3L (F23A1 & F23A4) 9.3:1
2.3L (F23A5) 8.8:1
3.0L (J30A1) 9.4:1
Civic
D16Y5 & D16Y7 9.4:1
D16Y8 9.6:1
CR-V 9.2:1
Oasis & Odyssey 9.3:1
Prelude 10.0:1
ENGINE COMPRESSION

Model (1) Standard psi (kg/cm2 ) Minimum psi (kg/cm2 ) (2) Minimum RPM
Accord
F23A5 & J30A1 178 (12.5) 135 (9.5) 200
F23A1 & F23A4 242 (17.0) 135 (9.5) 250
Civic 184 (13.0) 135 (9.5) 250
CR-V 220 (15.5) 135 (9.5) 250
Oasis & Odyssey 242 (17.0) 135 (9.5) 250
Prelude 185 (13.0) 135 (9.5) 250
(1) Maximum variation between cylinders is 28 psi (2.0 kg/cm2 ).
(2) With Wide Open Throttle (WOT).