Section 1 (Engine Controls - Tests W/Codes - 2.6L)
WARNING: This page is about a different car, the 1990 Isuzu Trooper, 1990 Isuzu Pickup, and 1990 Isuzu Amigo. However, it is still accessible from the selected car via links, so may be relevant.
- Introduction
- Self-Diagnostic System
- Diagnostic Circuit Check
- Notes
- Trouble Code Charts
- Ecu Terminal Identification
- Test 1: ECM Power Supply
- Test 2: "Check Engine" Light INOP
- Test 3: Will Not Flash Code 12
- Code 12: System Normal
- Code 13: O2 Sensor Circuit
- Code 14: Coolant Temp Sensor Shorted
- Code 15: Coolant Temp Sensor Open
- Code 21: Throttle Valve Switch (Idle & Full Throttle)
- Code 22: Starter Signal
- Code 23: Power Transistor Circuit
- Code 25: Pressure Regulator VSV
- Code 26 & 27: Canister Purge VSV
- Code 32: EGR System Malfunction
- Code 33: Fuel Injector Circuit (Open Or Grounded)
- Code 34: EGR Gas Temperature Sensor
- Code 35: Power Transistor Circuit
- Code 41: Crank Angle Sensor Signal
- Code 43: Throttle Valve Switch
- Code 44 & 45: O2 Sensor - Lean/Rich Fuel Mixture
- Fuel Metering Lean Faulty Inspection Procedure
- Fuel Metering Rich Faulty Inspection Procedure
- Code 51 & 52: Faulty ECM Ram/ROM
- Code 53: Pressure Regulator VSV
- Code 54: Power Transistor Circuit
- Code 61 & 62: Airflow Sensor Circuit
- Code 63: VSS Signal
- Code 64: Fuel Injector Circuit (ECM Transistor)
- Code 65: Throttle Valve Switch
- Summary