Operation CHARM: Car repair manuals for everyone.

Minimum Air Rate

UNDER 8500 GVW

CONTROLLED IDLE SPEED

Transmission Gear Idle Speed IAC Counts [1] OPEN/CLOSED LOOP [2]

Man. N 550 2-20 CL

Auto D 537 5-30 CL

[1] Add 2 counts for engines with less than 500 miles. Add 2 counts for every 1000 ft. above sea level.

[2] Let engine idle until proper fuel control status is reached (OPEN/CLOSED LOOP).

MINIMUM IDLE AIR RATE CHECK

Minimum Idle Air Rate is not adjustable on this engine.

OVER 8500 GVW

CONTROLLED IDLE SPEED

Transmission Gear Idle Speed IAC Counts [1] OPEN/CLOSED LOOP [2]

Man. N 650 5-30 CL

Auto D 650 20-35 CL

[1] Add 2 counts for engines with less than 500 miles. Add 2 counts for every 1000 ft. above sea level.

[2] Let engine idle until proper fuel control status is reached (OPEN/CLOSED LOOP).

MINIMUM IDLE AIR RATE CHECK

Minimum Idle Air Rate is not adjustable on this engine.