Mechanical Specifications

Firing Order 1-3-4-2

Idle Speed 700 ± 50 rpm [1]
Idle Mixture [1]

[1] Not Adjustable.

Port Fuel Injector Volume 45 - 55cc (2.7 - 3.4 cu in.) per 15 sec.

TIGHTENING TORQUE:

Cold Start Injector Fuel Pipe 13 ft.lbs. (18 N-m)
Cold Start Injector Mounting Bolts 9 ft.lbs. (9.3 N-m)
Filler Pipe Flange To Tank Bolts (2WD) 1.5 ft.lbs. (2 N-m)
Filler Pipe Flange To Tank Bolts (4WD) 2.2 ft.lbs. (2.9 N-m)
Fuel Lines To Fittings 22 ft.lbs. (30 N-m)
Fuel Pressure Regulator Mounting Bolts 4 ft.lbs. (5.4 N-m)
Fuel Pressure Regulator Fuel Return Pipe 13 ft.lbs. (18 N-m)
Fuel Pump Bracket To Tank (2WD) 3 ft.lbs. (3.9 N-m)
Fuel Pump Bracket To Tank (4WD) 2.2 ft.lbs. (2.9 N-m)
Fuel Rail Mounting Bolts 9 ft.lbs. (13 N-m)
Tank Strap Mounting Bolts (2WD) 29 ft.lbs. (39 N-m)
Tank Strap Mounting Nuts (4WD) 16 ft.lbs. (22 N-m)
Throttle Body To Intake Plenum Bolts 14 ft.lbs. (19 N-m)