Engine Error
P0194
Fuel Rail Pressure Sensor Circuit Intermittent
Severity
High
Symptoms
Engine sputters or dies randomly, intermittent check engine light
Common Causes
- Loose connection at the FRP sensor
- Wiring harness shorting intermittently
- Internally failing FRP sensor
- Failing fuel pump relay
How to Fix
- 1 Clean and secure the FRP connector
- 2 Perform wiggle test to find wiring break
- 3 Replace the fuel rail pressure sensor
- 4 Replace fuel pump relay
Estimated Repair Cost
USD
$50
–
$350
Relay: 20 - 50; FRP sensor replacement: 150 - 350