Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
1992 Mitsubishi Montero LSFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Code Charts - 2.4L
- Notes
- NS-1: Testing Ignition Circuit
- NS-2: Testing For Fuel
- NS-3: Testing Fuel Pump Circuit
- NS-4: Checking Control Relay Circuit
- NS-5: Testing Self-Diagnostic Connector
- NS-VER: No Start Verification Test
- Dr-1: Testing For Fault Codes
- Dr-2: Fault Code Tests
- Dr-3: Code 11, Oxygen Sensor Circuit
- Dr-4: Code 12, Airflow Sensor Circuit
- Dr-5: Code 13, Intake Air Temperature Sensor
- Dr-6: Code 14, Throttle Position Sensor Circuit
- Dr-7: Code 15, Motor Position Sensor
- Dr-8: Code 21, Coolant Temperature Sensor
- Dr-9: Code 22, Crank Angle Sensor Circuit
- Dr-10: Code 23, Top Dead Center Sensor
- Dr-11: Code 24, Vehicle Speed Sensor Circuit
- Dr-12: Code 25, Barometric Pressure Sensor Circuit
- Dr-13: Code 41, Injector Circuit
- Dr-14: Code 42, Fuel Pump Control Circuit
- Dr-15: Code 43, EGR Temperature Sensor
- Dr-16: No Fault Code Tests
- Dr-17: No Fault Code Sensor Tests
- Dr-18: No Fault Code Fuel System Calibration Test
- Dr-19: No Fault Code EGR Control Test
- Dr-20: No Fault Code Purge Control Test
- Dr-21: No Fault Code Mechanical Test
- Dr-22: Ignition Adjust Terminal
- DR-VER: Test DRIVEABILITY VERIFICATION TEST
- Code Charts - 3.0L
- Notes
- NS-1: Testing Ignition Circuit
- NS-2: Checking For Fuel
- NS-3: Testing Fuel Pump Circuit
- NS-4: Testing Self-Diagnostic Connector
- NS-5: Testing Crank Angle Sensor Circuit
- NS-6: Testing Control Relay Circuit
- Dr-1: Testing For Fault Codes
- Dr-2: Code 11, Oxygen Sensor Circuit
- Dr-3: Code 12, Airflow Sensor Circuit
- Dr-4: Code 13, Air Temperature Sensor Circuit
- Dr-5: Code 14, Throttle Position Sensor
- Dr-7: Code 21, Coolant Temperature Sensor
- Dr-8: Testing Self-Diagnostic Connector
- Dr-9: Code 23, Top Dead Center Sensor Circuit
- Dr-10: Code 24, Vehicle Speed Sensor
- Dr-11 Code 25, Barometric Pressure Sensor
- Dr-12: Code 41, Fuel Injector Circuit
- Dr-14: Code 43, EGR Temperature Sensor
- Dr-15: No Fault Code Switch Tests
- Dr-16: No Fault Code Sensor Tests
- Dr-17: No Fault Code Purge Solenoid Test
- Dr-18: No Fault Code Mechanical Test
Factory Service Tools
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.