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Engine Controls - Basic Testing - 3.4L
Engine Controls - Basic Testing - 3.4L
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Introduction
A & C Chart Reference Table
Preliminary Inspection & Adjustments
Visual Inspection
Mechanical Inspection
Compression
Exhaust System Backpressure
Diagnosis
Pcm Replacement Check
No Start Diagnosis (A-3)
Notes
Definition
No Start - Engine Cranks Okay
Notes
General Inspection
Ignition System
Fuel System
Basic Fuel System Checks (A-7)
Notes
Fuel System Pressure Test
Fuel Pressure Relief
Fuel Pressure Check
Fuel Pump Relay
Fuel Pump Relay By-Pass Procedure
Basic Ignition System Checks (C-4)
Spark
Ignition Coil Power Source
Ignition Coil Resistance
Crankshaft Position (CKP) Sensor Pick-Up Coil Short & Resistance Checks
Crankshaft Sensor Output Signal
Tach Pulse (Rpm) Signal
Idle Speed & Ignition Timing
On-Board Diagnostic (OBD) System Check
Notes
The OBD System Check determines:
A-1, Mil Inoperative
A-2/A-4, DLC Diagnosis Or No Scan Tool Data
Summary