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.
1994 Mitsubishi Eclipse Base, AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Terminal Identification
- Diagnostic Tests
- Notes
- Code 11: Oxygen Sensor (O2S) (2-Wire Oxygen Sensor)
- Code 11: Heated Oxygen Sensor (Ho2S) (4-Wire Oxygen Sensor)
- Code 12: Airflow Sensor
- Code 13: Intake Air Temperature Sensor
- Code 14: Throttle Position Sensor
- Code 15: Idle Speed Control Position Sensor
- Code 21: Engine Coolant Temperature (ECT) Sensor
- Code 22: Crankshaft Position (CKP) Sensor
- Code 23: Camshaft Position Sensor
- Code 24: Vehicle Speed Sensor
- Code 25: Barometric Pressure Sensor
- Code 31: Knock Sensor
- Code 32: Map Sensor
- Code 36: Ignition Timing Adjustment Signal
- Code 39: Oxygen Sensor (O2S)
- Code 41: Fuel Injector
- Code 42: Fuel Pump
- Code 43: EGR Temperature Sensor
- Codes 44, 52 & 53: Ignition Coils
- Code 55: Idle Air Control Position Sensor
- Summary
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
Comes to youSame-day available12-month warranty
Get a Free QuoteNo obligation. See pricing before you book.