LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Honda >> 1990 >> Prelude L4-2056cc DOHC >> Repair and Diagnosis >> Specifications >> Mechanical Specifications >> Powertrain Management >> Emission Control Systems
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Emission Control Systems






CO% AT IDLE [2] LESS THAN 0.1%

IDLE SPEED 770 ± 50 (A/T in "drive")

IGNITION TIMING [1] 15 ± 2~ BTDC @ 750 ± 50 RPM




[1] With jumper wire installed in service connector.
[2] Check only not adjustable.