Emission Control Systems

4A-F ENGINE (CARBURETED)

Valve Clearance (COLD)
Intake 0.15mm (0.006 in.) - 0.25mm (0.010 in.)
Exhaust 0.20mm (0.008 in.) - 0.30mm (0.012 in.)

Firing Order 1-3-4-2

Idle Speed
M/T 650 rpm (1)
A/T 750 rpm (1)
Idle Mixture (1)

Fast Idle Speed (w/ EGR And Choke Opener OFF) 3000 rpm (1)

TP Setting Speed 900 rpm (1)
TP Switch Setting Speed 1800 rpm (1)

1. Refer to adjustment procedure.

TIGHTENING TORQUE SPECIFICATIONS:

Catalyst To Exhaust Pipe Bolts 43 N-m (32 ft.lbs.)
Catalyst To Air Suction Pipe 20 N-m (15 ft.lbs.)
Distributor Hold Down Bolts 20 N-m (14 ft.lbs.)


4A-FE ENGINE (FUEL INJECTED)

Valve Clearance (COLD)
Intake 0.15mm (0.006 in.) - 0.25mm (0.010 in.)
Exhaust 0.20mm (0.008 in.) - 0.30mm (0.012 in.)

Firing Order 1-3-4-2

Idle Speed 800 rpm (1)
Idle Mixture (2)

DP Setting Speed (1)
M/T 1800 rpm
A/T 2200 rpm

1. Refer to adjustment procedure.
2. Not Adjustable.

TIGHTENING TORQUE SPECIFICATIONS:

Catalyst To Exhaust Pipe Bolts 43 N-m (32 ft.lbs.)
Catalyst Protector Plate Bolts 11 N-m (8 ft.lbs.)
Distributor Hold Down Bolts 20 N-m (14 ft.lbs.)


4A-GE ENGINE (FUEL INJECTED)

Valve Clearance (COLD)
Intake 0.15mm (0.006 in.) - 0.25mm (0.010 in.)
Exhaust 0.20mm (0.008 in.) - 0.30mm (0.012 in.)

Firing Order 1-3-4-2

Idle Speed 800 rpm (1)
Idle Mixture (2)

DP Setting Speed 1800 rpm (1)

1. Refer to adjustment procedure.
2. Not Adjustable.

TIGHTENING TORQUE SPECIFICATIONS:

Catalyst To Exhaust Pipe Bolts 43 N-m (32 ft.lbs.)
Catalyst Protector Plate To Bracket Bolts 19 N-m (14 ft.lbs.)
Distributor Hold Down Bolts 20 N-m (14 ft.lbs.)