Emission Control Systems

4A-FE ENGINE

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:
2WD 700 rpm [1]
4WD 800 rpm [1]

Idle Mixture [2]

[1] Refer to ADJUSTMENT PROCEDURES.
[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

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]

[1] Refer to ADJUSTMENT PROCEDURES.
[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.)
EGR Pipe To Exhaust Manifold 69 N-m (51 ft.lbs.)