P0193

Medium Severity

Fuel Rail Pressure Sensor Circuit High

Fuel System

What Does P0193 Mean?

Fuel rail pressure sensor reads higher than expected.

Common Fix

Replace fuel pressure sensor

Estimated Cost (DIY)

$30 - $80

Symptoms

  • ⚠️Rich running
  • ⚠️Poor fuel economy
  • ⚠️Check engine light

Related Symptoms

Check engine light on

Common Causes

Faulty sensorlikely
High fuel pressure (bad regulator)possible
Short in wiringpossible

How to Diagnose P0193

  1. 1Check actual fuel pressure
  2. 2Inspect wiring for shorts
  3. 3Check fuel pressure regulator
  4. 4Replace sensor if readings are false

OEM Diagnostic Flowchart

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Read live data and freeze frame for P0193 to pinpoint the cause before buying parts.

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Related Resources

Repair guides, symptom pages, and wiring diagrams related to P0193.

OEM Manual Evidence

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2013 Chevy Truck Orlando (CANADA) L4-2.4L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 Chevy Truck Orlando (CANADA) L4-2.4L Service Manual | Operation CHARM Operation CHARM : Car r...

2013 Infiniti Truck QX56 AWD V8-5.6L (VK56VD) A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 Infiniti Truck QX56 AWD V8-5.6L (VK56VD) Service Manual | Operation CHARM Operation CHARM : C...

2013 Infiniti Truck QX56 RWD V8-5.6L (VK56VD) A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 Infiniti Truck QX56 RWD V8-5.6L (VK56VD) Service Manual | Operation CHARM Operation CHARM : C...

2013 Cadillac XTS AWD V6-3.6L A L L Diagnostic Trouble Codes ( DTC )OEM Manual

A L L Diagnostic Trouble Codes ( DTC ) — 2013 Cadillac XTS AWD V6-3.6L Service Manual | Operation CHARM Operation CHARM : Car repair manual...

Related Symptoms

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Check engine light onSymptom Hub

A check-engine light is a graph entry point into code pages, symptom-specific diagnosis, and the exact repair categories most often associated with those failures.

Exact Vehicle Hubs

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2013 Cadillac Xts Awd V6 3.6l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0193.

2013 Chevy Truck Orlando (Canada) L4 2.4l Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0193.

2013 Infiniti Truck Qx56 Awd V8 5.6l (Vk56vd) Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0193.

2013 Infiniti Truck Qx56 Rwd V8 5.6l (Vk56vd) Repair HubManual

Open the exact vehicle hub grounded by OEM manual evidence related to P0193.

Related Codes

P0191: Fuel Rail Pressure Sensor Circuit Range/PerformanceRelated

The fuel rail pressure sensor reading does not match expected values. Usually a sensor fault or wiring issue.

P0192: Fuel Rail Pressure Sensor Circuit LowRelated

Fuel rail pressure sensor reads too low. Could be a sensor fault or actually low fuel pressure.

Frequently Asked Questions

Can high fuel pressure damage the engine?
Yes — excessively high fuel pressure causes rich running, fouled plugs, and can damage the catalytic converter.
What regulates fuel pressure?
The fuel pressure regulator (on the fuel rail or in the fuel pump module) maintains correct pressure.

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