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.
1995 Mazda MX-3 AutomaticFACTORY OEM SERVICE PROCEDURE
Engine Controls - Tests W/Codes
- Introduction
- Self-Diagnostic System
- Trouble Code IDEFINITION Charts
- Trouble Code Charts
- Notes
- Code 3: SGC Signal - Distributor
- Code 4: SGT Signal - Distributor
- Code 8: Mass Air Flow Sensor
- Code 9: Engine Coolant Temperature Sensor
- Code 10: Intake Air Temperature Sensor - In Mass Air Flow Sensor
- Code 12: Throttle Position Sensor
- Code 14: Barometric Pressure Sensor
- Code 15: Heated Oxygen Sensor - Inactivation
- Code 16: EGR Valve Position Sensor
- Code 17: Heated Oxygen Sensor - Sticking
- Code 25: PRC Solenoid Valve
- Code 26: Purge Solenoid Valve
- Code 28: EGR Vacuum Solenoid Valve
- Code 29: EGR Vent Solenoid Valve
- Code 34: Idle Air Control Valve
- Code 35: PRC Solenoid Valve No. 2
- Code 41: VICS Solenoid Valve
- 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.
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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.
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