Engine Controls - System/Component Tests - EFI

• Introduction
• Air Induction Systems
  • Turbocharger (RX7)
    • Air By-Pass Valve
    • Compressor & Turbine Wheel Deflection
    • Charge Relief Valve
    • Intercooler
    • Oil Passage Inspection
    • Solenoid Valves (Turbo Precontrol & Wastegate Control)
    • Charge Actuator
    • Control Actuator
    • Precontrol Actuator
    • Wastegate Actuator
  • Double Throttle Control (RX7)
    • System Check
  • Variable Inertia Charging System (Protege DOHC & 929)
    • System Check (Protege DOHC)
    • System Check (929)
    • Check Valve (929)
    • Solenoid Valve
    • Shutter Valve Actuator (Protege DOHC)
    • Shutter Valve Actuator (929)
    • Shutter Valve (929)
    • Vacuum Chamber (Protege DOHC)
    • Vacuum Chamber (929)
  • Variable Resonance Induction System (MPV 3.0L, MX-3 DOHC, MX-6 2.5L & 626 2.5L)
    • System Check (MX-3 DOHC, MX-6 2.5L & 626 2.5L)
    • Check Valve
    • Shutter Valve Actuator (MPV 3.0L)
    • Shutter Valve Actuators (MX-3 DOHC, MX-6 2.5L & 626 2.5L)
    • Solenoid Valve
    • Vacuum Chamber
• Computerized Engine Controls
  • Powertrain Control Module (NAVAJO)
    • Ground Circuits
    • Power Circuits
  • Powertrain Control Module (Except NAVAJO)
• Engine Sensors & Switches
  • A/C Switch
  • Air Charge Temperature (Act) Sensor
    • MX-6 2.0L & 626 2.0L
    • Navajo
  • Airflow Sensor
    • B2200, B2600i, MX-6 2.0L, MPV 2.6L & 626 2.0L
    • Burn-Off Operation (B2200, B2600i & MPV 2.6L)
  • Airflow Meter
    • Miata, MPV 3.0L, MX-3, MX-6 2.5L, Protege, 323, 626 2.5L & 929
  • Atmospheric Pressure Sensor
  • Barometric Pressure (BARO) Sensor
    • RX7
  • BRAKELIGHT Switch
  • Camshaft Position Sensor (CMP)
    • Navajo
  • Central Processing Unit (CPU)
    • MPV, RX7 & 929
  • Clutch Switch (M/T)
  • Cold Start THERMOSWITCH
    • 929
  • Coolant Temperature Switch
    • Miata, MX-3 SOHC, Protege & 323
  • Crank Angle Sensor
  • Engine Coolant Temperature (ECT) Sensor
  • EGR Position Sensor
    • MX-3 DOHC, MX-6 2.5L, RX7, 626 2.5L & 929
  • Fuel Temperature Sensor
    • RX7
  • Heat Hazard Sensor
    • RX7
  • Heated Oxygen Sensor (Ho2S)
    • MPV 3.0L, MX-6, 626 & 929
    • Navajo
  • Idle Switch
    • B2200, B2600i, MPV 2.6L, MX-6 2.0L & 626 2.0L
    • Miata, MPV 3.0L, MX-3, MX-6 2.5L, Protege, RX7, 323, 626 2.5L & 929
  • Inertia Fuel Shutoff (Ifs) Switch
    • Navajo
  • Inhibitor Switch (A/T)
  • Intake Air THERMOSENSOR (Dynamic Chamber)
    • B2200, B2600i & MPV
    • RX7
    • 929
  • Knock Sensor
  • Mass Airflow (MAF) Sensor (NAVAJO)
  • Mileage Switch (RX7)
  • Neutral Switch
    • Except Navajo (M/T)
    • Navajo
  • Oxygen (O2) Sensor
    • B2200, B2600i, Miata, MPV 2.6L, MX-3, Protege, RX7 & 323
    • MPV 3.0L, MX-6, 626 & 929
  • Power Steering Pressure Switch (PSPS)
  • Throttle Position Sensor
  • Variable Reluctance (VR) Sensor
    • Navajo
  • Vehicle Speed Sensor (VSS)
    • Except Navajo & 929
    • Navajo
    • 929
  • 1-2 Switch
    • RX7 (M/T)
• Relays & Solenoids
  • Relays
    • Circuit Opening Relay
    • Cold Start Injector Relay (929)
    • Fuel Pump Relay (Navajo)
    • Main Relay (Except Navajo)
    • EEC Power Relay (Navajo)
  • Solenoids
    • Notes
    • Backpressure EGR Vacuum Regulator Valve (Navajo)
    • Canister Purge (CANP) Solenoid (Navajo)
    • Cold Start Injector Resistance (929)
    • Double Throttle Control Solenoid (RX7)
    • EGR Solenoid (MX-3 DOHC, MX-6, RX7, 626 & 929)
    • Fuel Injectors
    • Fuel Injector Resistance
    • Pressure Regulator Control Solenoid (Except Navajo)
    • Purge Control Solenoid
    • Air Injection Solenoid (RX7)
    • Turbocharger Solenoid (RX7)
    • VICS Solenoid (Protege DOHC & 929)
    • VRIS Solenoid (MPV 3.0L, MX-3 DOHC, MX-6 2.5L & 626 2.5L)
• Fuel System
  • Fuel Delivery
    • Notes
    • Circuit Opening Relay
    • Fuel Pump Circuit
    • Fuel Pump Relay (Navajo)
    • Inertia Fuel Shutoff (IFS) Switch (Navajo)
    • Fuel Pressure Regulator (Except Navajo)
    • Fuel Pressure Regulator (Navajo)
    • Fuel Pressure Regulator Pressure Leakage (Navajo)
    • Pulsation Damper (Navajo & RX7)
    • Pressure Regulator Control (Except Miata, Navajo & 929)
    • Pressure Regulator Control Solenoid (Except Navajo)
  • Fuel Control
    • Fuel Injectors
    • Injector Fuel Leakage (Except Navajo)
    • Injector Fuel Leakage (Navajo)
• Idle Control System
  • IDLE SPEED CONTROL (ISC) SYSTEM (B2200, B2600i, MPV, MX-3, MX-6, 626 & 929)
    • Air Valve (B2200, B2600i, MPV 2.6L, MX-6 2.0L & 626 2.0L)
    • Air Valve (MPV 3.0L & 929)
    • Air Valve System (MX-3, MX-6 & 626)
    • ISC Valve
  • Idle Speed Control (ISC) System (MIATA, Protege & 323)
    • Air Valve
    • ISC Valve
  • Idle Speed Control (ISC) System (NAVAJO)
    • Idle Speed Control (ISC) Solenoid
  • Idle Speed Control (ISC) System (RX7)
    • ISC Valve
    • Accelerated Warm-Up System (AWS) Valve
• Ignition System
  • * Please Read This First *
  • Pinpoint Tests (NAVAJO)
    • Notes
    • Pinpoint Test B (IDM Failure Code 212)
    • Pinpoint Test C (Lack Of Power Or Poor Fuel Economy Code 213)
    • Pinpoint Test D (No Start Or Coil Failure Code 232)
• Emission Systems & Sub-Systems
  • Air Injection (RX7)
    • System Inspection
    • Air Control Valve
    • Air Pump
    • Air Relief Valve
    • Control Solenoids
    • Port Air & Split Air Check Valves
  • Deceleration Control System
  • Exhaust Gas RECIRCULATION (EGR - MX-3 DOHC, MX-6, RX7, 626 & 929)
    • System Check (MX-3 DOHC, MX-6 2.5L, 626 2.5L & 929)
    • System Check (MX-6 2.0L & 626 2.0L)
    • System Check (RX7)
    • EGR Control Valve
    • EGR Modulator Valve (MX-6 2.0L & 626 2.0L)
    • EGR Position Sensor (MX-3 DOHC)
    • EGR Position Sensor (MX-6 2.0L & 626 2.0L)
    • EGR Position Sensor (MX-6 2.5L & 626 2.5L)
    • EGR Position Sensor (929)
    • EGR Switch (RX7 California)
    • EGR Solenoid Valve (MX-3 DOHC, MX-6 2.5L, 626 2.5L & 929)
  • Exhaust Gas RECIRCULATION (EGR - NAVAJO - CALIFORNIA)
    • System Check
    • EGR Control Valve
  • Fuel Evaporation (Except NAVAJO)
    • System Inspection
    • Charcoal Canister
    • 1-Way Check Valve (B2200, B2600i & MPV)
    • 2-Way Check Valve (All Except B2200, B2600i & MPV)
    • 3-Port Check Valve (Miata A/T & 929)
    • Check & Cut Valve (B2200, B2600i, MPV, MX-3, Protege & 323)
    • Fuel Vapor Valve (B2200, B2600i, Miata, MX-6, RX7, 626 & 929)
    • Purge Control Solenoid Valve
    • Separator
  • Fuel Evaporation (NAVAJO)
    • Canister Purge (CANP) Solenoid
    • EVAP Canister
  • Positive Crankcase Ventilation (PCV)
    • System Inspection
  • Thermostatic Air Cleaner (TAC - NAVAJO)
    • Air Cleaner Temperature Sensor
    • Air Control Door
• Miscellaneous Controls
  • A/C Clutch
    • A/C Cut-Off Control System (B2200, B2600i, Miata, MPV, MX-3,MX-6, RX7, 626 & 929)
    • Wide Open Throttle A/C Cut-Out (WAC) & A/C Demand Switch (Navajo)
  • Anti-Backfire
    • Anti-Afterburn Control (RX7)
  • Exhaust Control
    • Variable Exhaust System (929)