DTC P0191 — Fuel Rail Pressure Sensor Circuit Range/Performance
P0191 indicates: Fuel Rail Pressure Sensor Circuit Range/Performance.
Diagnostic summary
P0191
What it means
Fuel Rail Pressure Sensor Circuit Range/Performance
Can you drive?
⚠️ Drive with caution
Urgency
Medium 5/10
Typical price
$80 – $400
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Updated Apr 8, 2026 Seen on Powertrain
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ℹ️ What does it mean?
Fuel Rail Pressure Sensor Circuit Range/Performance
🔍 Symptoms
- • Check Engine Light on
- • Reduced engine performance
- • Increased fuel consumption
- • Unusual engine behavior
⚠️ Possible Causes
- ⚠ Faulty fuel rail pressure sensor
- ⚠ Low fuel pressure
- ⚠ Wiring issue
- ⚠ Clogged fuel filter
🚗 Can I drive with this code?
Drive with caution
Drive with caution. Schedule a repair soon.
🔧 How to Diagnose
- 1 Read DTCs with OBD-II scanner
- 2 Check freeze frame data
- 3 Inspect related components
- 4 Clear codes and test drive
🛠️ How to Fix
- 1 Replace fuel rail pressure sensor
- 2 Check fuel pump
- 3 Replace fuel filter
- 4 Repair wiring
💰 Estimated Repair Cost
Repair cost by car / region
Early rough estimate. Accuracy improves as more real repair stories are added.
DIY / parts$28 – $260
Mechanic / labor$36 – $300
Repair range$80 – $400
❓ FAQ
What does P0191 mean?
Fuel Rail Pressure Sensor Circuit Range/Performance
How serious is P0191?
Severity: medium. Drive with caution. Schedule a repair soon.
How much does it cost to fix P0191?
Estimated repair cost: $80–$400 depending on vehicle and region.
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