FI
EFI System
126 pages— Pages
001EFI SYSTEM002SYSTEM DESCRIPTION003SYSTEM DESCRIPTION (Cont'd)004EFI SYSTEM — System Description005PRECAUTIONS006EFI SYSTEM — Inspection Precautions007ELECTRONIC CONTROL SYSTEM008EFI SYSTEM — Inspection Precautions009EFI SYSTEM — Inspection Precautions010TROUBLESHOOTING011TROUBLESHOOTING PROCEDURES012SYMPTOM — DIFFICULT TO START OR NO START (CRANKS OK)013EFI SYSTEM — Troubleshooting014SYMPTOM — ENGINE OFTEN STALLS015EFI SYSTEM — Troubleshooting016SYMPTOM — ROUGH IDLING AND/OR MISSING017EFI SYSTEM — Troubleshooting018SYMPTOM — HIGH ENGINE IDLE SPEED (NO DROP)019SYMPTOM — ENGINE BACKFIRES-Lean Fuel Mixture020SYMPTOM — MUFFLER EXPLOSION (AFTER FIRE)
-Rich Fuel Mixture-Misfire021SYMPTOM — ENGINE HESITATES AND/OR POOR ACCELERATION022EFI SYSTEM — Troubleshooting023DIAGNOSIS SYSTEM024EFI SYSTEM — Diagnosis System025CANCELLING OUT DIAGNOSTIC CODE026DIAGNOSTIC CODES027DIAGNOSTIC CODES (Cont'd)028DIAGNOSTIC CODES (Cont'd)029INSPECTION OF DIAGNOSIS CIRCUIT030TROUBLESHOOTING WITH VOLT/OHMMETER (7M-GE)031EFI SYSTEM CHECK PROCEDURE032Voltage at ECU Wiring Connectors033EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M GE)034EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)035EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)036EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)037EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)038EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)039EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)040EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)041EFI SYSTEM - Troubleshooting with Volt/Ohmmeter (7M-GE)042EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)043EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)044EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)045EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)046EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)047EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)048EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GE)049TROUBLESHOOTING WITH VOLT/OHMMETER (7M-GTE)050EFI SYSTEM CHECK PROCEDURE051Voltage at ECU Wiring Connectors052EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)053EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)054EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)055EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)056EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)057EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)058EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)059EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)060EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)061EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)062EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)063EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)064EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)065EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)066EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)067EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)068EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)069EFI SYSTEM — Troubleshooting with Volt/Ohmmeter (7M-GTE)070FUEL SYSTEM
Fuel Pump071ON-VEHICLE INSPECTION072EFI SYSTEM — Fuel System073EFI SYSTEM — Fuel System074EFI SYSTEM — Fuel System075COMPONENT076EFI SYSTEM — Fuel System077Cold Start Injector078REMOVAL OF COLD START INJECTOR079INSPECTION OF COLD START INJECTOR080INSTALLATION OF COLD START INJECTOR081Fuel Pressure Regulator082INSTALLATION OF FUEL PRESSURE REGULATOR083Injectors084REMOVAL OF INJECTORS085EFI SYSTEM — Fuel System086EFI SYSTEM — Fuel System087INSPECTION OF INJECTORS088EFI SYSTEM — Fuel System089EFI SYSTEM — Fuel System090EFI SYSTEM — Fuel System091EFI SYSTEM — Fuel System092Fuel Tank and Line
COMPONENTS093PRECAUTIONS094AIR INDUCTION SYSTEM
Air Flow Meter (7M-GE)095REMOVAL OF AIR FLOW METER096Air Flow Meter (7M-GTE)097REMOVAL OF AIR FLOW METER098EFI SYSTEM — Air Induction System099EFI SYSTEM — Air Induction System100Throttle Body101INSPECT THROTTLE POSITION SENSOR102(7M-GTE)103EFI SYSTEM — Air Induction System104INSTALLATION OF THROTTLE BODY105EFI SYSTEM — Air Induction System106Idle Speed Control (ISC) Valve107INSPECTION OF ISC VALVE108ELECTRONIC CONTROL SYSTEM
Location of Electronic Control Parts109EFI Main Relay110Circuit Opening Relay111Solenoid Resistor (7M-GTE)112Cold Start Injector Time Switch113Water Temp. Sensor114Fuel Pump Relay and Resistor115EFI SYSTEM — Electronic Control System116Fuel Pressure Control System (7M-GTE)117EFI SYSTEM — Electronic Control System118EGR Gas Temp. Sensor
(California Vehicles only)119Oxygen Sensor
INSPECTION OF OXYGEN SENSOR120EFI SYSTEM — Electronic Control System121EFI SYSTEM — Electronic Control System122Electronic Controlled Unit (ECU)123Voltage at ECU Wiring Connectors (Cont'd)124EFI SYSTEM — Electronic Control System125Fuel Cut RPM126Page 126