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Section 10 (Engine Controls - Basic Testing)
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Section 10 (Engine Controls - Basic Testing)
WARNING:
This page is about a different car, the 1994 Chevrolet Caprice and 1994 Buick Roadmaster. However, it is still accessible from the selected car via links, so may be relevant.
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Introduction
Preliminary Inspection & Adjustments
Visual Inspection
Mechanical Inspection
Compression
Exhaust System Backpressure
Diagnosis
Pcm Replacement Check
No Start Diagnosis (A-3)
Notes
Engine Controls - Basic Testing
Definition
No Start - Engine Cranks Okay (5.7L MFI W/OPTI-Spark)
General Inspection
Ignition System
Basic Fuel System Checks (A-7)
Notes
Fuel System Pressure Test
Fuel Pressure Relief (MFI)
Fuel Pressure Check (MFI)
Fuel Pump Relay
Fuel Pump Relay By-Pass Procedure
Field Service Mode Check
Basic Ignition System Checks (C-4)
HEI-Est Distributor
Notes
Spark
Ignition Coil Power Source
Ignition Coil Resistance
Distributor Pick-Up Coil Short & Resistance Checks
Tach Pulse (RPM) Signal
OPTI-Spark
Spark
Ignition Coil Power Source
Ignition Coil Resistance
Tach Pulse (RPM Reference) Signal
Idle Speed & Ignition Timing
Diagnostic Circuit Check
Notes
A-1, Mil Inoperative
A-2, Mil On Steady Or Won't Flash Code 12
Summary
Wiring Diagrams