Wiring Diagram Cluster

1990 Plymouth HORIZON Fuel Pump Wiring Diagram

Find fuel-pump power and control wiring, relay paths, and fuel-level sender references to speed up no-start diagnosis.

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Matched Diagrams

14

Variant Used

Horizon L4-135 2.2L SOHC

Total Vehicle Diagrams

278

From Diagram To Fix

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Fuel Filter Replacement1990 Plymouth HORIZON A L L Diagnostic Trouble Codes ( DTC )

Likely fix path

Exact Repair Guides

These repair flows most often intersect with fuel pump diagnosis on this exact vehicle.

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Diagnostic signal

Codes Often Seen With This System

Use the code cluster when wiring faults overlap with check-engine or module-level diagnostics.

P0192: Fuel Rail Pressure Sensor Circuit Low →
P0230: Fuel Pump Primary CircuitP0231: Fuel Pump Secondary Circuit LowP2177: System Too Lean Off Idle (Bank 1)

Top Fuel Pump Diagram Paths

1.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > Fuel PumpGeneralOpen2.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > How to Find System & Component DiagramsPowertrain ManagementOpen3.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > How to Read Wiring Diagrams > Connectors, Grounds and SplicesPowertrain ManagementOpen4.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > How to Read Wiring Diagrams > Wire Color CodesPowertrain ManagementOpen5.Fuel Delivery and Air Induction > Fuel Pump — Diagram Information and Instructions > How to Use Complete Body and Chassis DiagramsPowertrain ManagementOpen6.Fuel Delivery and Air Induction > Fuel Pump — Electrical DiagramsPowertrain ManagementOpen7.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > System Diagram > Complete System DiagramGeneralOpen8.Electrical Diagrams > Powertrain Management > Fuel Delivery and Air Induction > System Diagram > Fuel Tank System Wiring CircuitGeneralOpen9.Fuel Delivery and Air Induction — Diagram Information and Instructions > How to Find System & Component DiagramsPowertrain ManagementOpen10.Fuel Delivery and Air Induction — Diagram Information and Instructions > How to Read Wiring Diagrams > Connectors, Grounds and SplicesPowertrain ManagementOpen11.Fuel Delivery and Air Induction — Diagram Information and Instructions > How to Read Wiring Diagrams > Wire Color CodesPowertrain ManagementOpen12.Fuel Delivery and Air Induction — Diagram Information and Instructions > How to Use Complete Body and Chassis DiagramsPowertrain ManagementOpen13.Fuel Delivery and Air Induction — Electrical Diagrams > Complete System DiagramPowertrain ManagementOpen14.Fuel Delivery and Air Induction — Electrical Diagrams > Fuel Tank System Wiring CircuitPowertrain ManagementOpen

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1990 Plymouth Horizon Repair HubExact Vehicle

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OEM Manual Evidence

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1990 Plymouth HORIZON A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 1990 Plymouth Horizon L4-135 2.2L SOHC Service Manual | Operation CHARM Operation CHARM : Car repa...

1990 Plymouth HORIZON A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 1990 Plymouth Acclaim L4-153 2.5L SOHC Service Manual | Operation CHARM Operation CHARM : Car repa...

1990 Plymouth HORIZON A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 1990 Plymouth Sundance L4-153 2.5L SOHC Service Manual | Operation CHARM Operation CHARM : Car rep...

1990 Plymouth HORIZON A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 1990 Plymouth Sundance L4-135 2.2L SOHC Service Manual | Operation CHARM Operation CHARM : Car rep...

Repairs That Intersect This Wiring

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1990 Plymouth HORIZON Fuel Filter ReplacementRepair

Open the matching repair workflow that usually intersects with fuel pump diagnosis on this vehicle.

Likely Trouble Codes for This System

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P0192: Fuel Rail Pressure Sensor Circuit LowCode

Fuel code commonly seen during fuel pump diagnosis.

P0230: Fuel Pump Primary CircuitCode

Fuel code commonly seen during fuel pump diagnosis.

P0231: Fuel Pump Secondary Circuit LowCode

Fuel code commonly seen during fuel pump diagnosis.

P2177: System Too Lean Off Idle (Bank 1)Code

Fuel code commonly seen during fuel pump diagnosis.

P0174: System Too Lean (Bank 2)Code

Fuel code commonly seen during fuel pump diagnosis.

P0191: Fuel Rail Pressure Sensor Circuit Range/PerformanceCode

Fuel code commonly seen during fuel pump diagnosis.

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Same System, Other Vehicles

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