Operation CHARM: Car repair manuals for everyone.

System Specifications

Air Fuel Mixture CO content [1] between 0.2 & 8.0%

Firing Order 1-2-3-4-5-6

Idle Speed [2] 750 +/- 50 rpm

Ignition Timing [3] 15° +/- 2° BTDC

Spark Plug Gap 0.031-0.035in (0.8-0.9mm)

Valve Adjustment Hydraulic

Crankshaft Rotation Clockwise


[1] With 2.5 kOhm resistor in place of engine coolant temperature sensor and heated oxygen sensor disconnected
[2] At operating temperature, A/T in neutral
[3] At 750 rpm