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Plymouth
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1988
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Horizon Automatic
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Repair and Diagnosis
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Engine Performance
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EGR System
EGR System
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Description
Operation
Notes
Ported Vacuum Control System
2.2L & 2.5L TBI, 3.0L MPFI & 5.2L 2-Bbl. Engines
VENTURI Vacuum Control System
5.2L 4-Bbl. Engine
Charge Temperature Sensor
5.2L 4-Bbl. Engine
EGR Delay System
5.2L 4-Bbl. Engine
Testing
EGR System On-Board Diagnostics
California Models
EGR Solenoid
System Functional Check
Notes
2.2L & 2.5L (Except Turbo)
5.2L
Servicing
EGR Valve