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1988
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Celebrity 4D Sedan, 2.5 R
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Repair and Diagnosis
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Fuel Injection System - Multi-Port
Fuel Injection System - Multi-Port
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Description
Notes
Fuel System
Electronic Control System
Operation
Fuel Control System
Fuel Pump
Fuel Pressure Regulator
Fuel Rails
Fuel Injectors
Cold Start Valve
Air Induction System
Throttle Body
Idle Air Control
Airflow Sensing
Speed Density
Mass Airflow
Trouble Shooting
Preliminary Checks
Fuel Pressure Relief
Fuel System Diagnosis
Symptoms
Hard Start
Hesitation, Sag, Stumble
Rough, Unstable Idle
Cuts Out, Misses
Detonation
Surges And/Or Chuggle
Lack Of Power, Sluggish Or Spongy
Backfire
Poor Fuel Economy
Dieseling
Excessive Exhaust Emissions Or Odors
Removal & Installation
Notes
Fuel Rail & Injectors
Removal (2.0L, 3.0L & 3.8L)
Installation
Removal (2.3L)
Removal (2.8L, 5.0L & 5.7L)
Idle Air Control Valve
Notes
Removal (2.3L & 2.8L VIN 9 & W)
Installation
Removal (All Others)
Oxygen Sensor
Notes
Removal
Installation
Throttle Position Sensor
Removal
Installation
Throttle Body
Removal
Installation
Fuel Pressure Regulator
Removal & Installation (2.0L & 2.3L)
Installation
Removal (2.8L VIN W)
Removal (5.0L & 5.7L)
Fuel Pump
Removal & Installation (Except Corvette)
Removal (Corvette)
Installation
Adjustments
Notes
Minimum Idle Speed
Notes
2.0L & 2.8L (VIN 9)
2.3L
2.8L (VIN S & W), 3.0L & 3.8L
5.0L & 5.7L
Throttle Position Sensor (TPS)
Torque Specifications
Wiring Diagrams