Emission Control Systems

1990 Mitsubishi Eclipse AWD L4-1997cc 2.0L DOHC TurboSECTION Emission Control Systems



Valve Clearance Hyd. Lifters [1]

Firing Order 1-3-4-2

Idle Speed 750 ± 100 rpm [2]
Idle Mixture [1]

[1] Not Adjustable.
[2] Refer to ADJUSTMENT PROCEDURES.

TIGHTENING TORQUE SPECIFICATIONS:

Catalyst To Center Exhaust Pipe Bolts 30 - 40 N-m (22 - 29 ft.lbs.)
Catalyst To Front Exhaust Pipe 30 - 40 (22 - 29 ft.lbs.)
EGR Valve Installation Bolt 15 - 22 N-m (10 - 15.5 ft.lbs.)
EGR Temperature Sensor 10 - 12 N-m (7.3 - 8.6 ft.lbs.)
EGR Thermo Valve 20 - 40 N-m (15 - 30 ft.lbs.)

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • You smell fuel, burning insulation, or see smoke.
  • Brakes feel soft, pull hard to one side, or make grinding noises.
  • The engine overheats, stalls repeatedly, or misfires under load.
  • You are missing required tools, torque specs, or safe lifting equipment.
  • You are not confident in the next step or safety outcome.