Engine Controls - Basic Testing

Introduction
Visual Inspection
Mechanical Inspection
- Compression
- Exhaust System BACKPRESSURE
No-Start Diagnosis
- Notes
- Engine Controls - Basic Testing
  - Definition
No-Start - Engine Cranks Okay (TBI With HEI)
- Notes
- General Inspection
- Ignition System
- Fuel System
Fuel System Pressure Relief
- Model 700 TBI Unit
- Model 220 TBI Unit
Fuel System Pressure Test
- Notes
- Fuel Pressure Relief
- Fuel Pressure Check
- Fuel Pump Relay
- Fuel Pump Relay By-Pass Procedure
- Field Service Mode Check
Basic Fuel System Checks (Diesel)
- Fuel Pump Flow Test
- Fuel System Pressure Test
Basic Ignition System Checks (Gasoline)
- HEI-Est Distributor
- Spark
- Ignition Coil Power Source
- Ignition Coil Resistance (Externally Mounted)
- Ignition Coil Resistance (Internally Mounted)
- Distributor Pick-Up Coil Short & Resistance Checks
- Tach Pulse (Rpm) Signal
Idle Speed & Ignition Timing (All Engines)
Diagnostic Circuit Check (Gasoline)
Chart A-1, Service Engine Soon Light Inoperative
Chart A-2, Service Engine Soon Light Won't Flash Code 12
Chart A-3, Engine Cranks But Will Not Run
- 2.5L
- All But 2.5L
Chart A-4, Injector Circuit Diagnosis
- 2.5L
  - Circuit Description
  - Test Description
- All But 2.5L
  - Circuit Description
  - Test Description
Chart A-5, Fuel Pump Relay Circuit Diagnosis
- S, T & M Series
  - Circuit Description
  - Test Description
- C, K, R, V, G, P & GP Series
Chart A-6, Fuel System Pressure Test
- Engine Controls - Basic Testing
Diagnostic Circuit Check (Diesel)
Diagnostic Procedure
- Preliminary Inspection
- Diagnostic Procedure
Summary