Honda P0194-Fuel Rail Pressure Sensor “A” Circuit Intermittent

Honda P0194 Fuel Rail Pressure Sensor “A” Circuit Intermittent

Code P0194 Honda is DTC code indicating that power control module or PCM has detected a intermittent electrical problem in the circuit of fuel rail pressure sensor. This sensor is responsible for measuring the fuel pressure in fuel rail and send information to power control module.

Possible Causes Code P0194 Honda

1.Fuel rail pressure sensor may be faulty providing inconsistent reading to power control module triggering p0194.

2.Problem with fuel rail pressure sensor wiring harness, connector or terminal can cause intermittent electrical connection and trigger this code.

3.Week or faulty ground connection can disrupt proper functioning of fuel rail pressure sensor leading to intermittent signals and triggering p0194.

4.Problem with engine control module or power control module can affect the interpretation of fuel rail pressure sensor signal and trigger this code.

5.Clogged fuel filter ,leak in fuel rail or malfunctioning fuel pump can affect fuel pressure reading and trigger this code.

6.Electrical problem such as damaged wiring, corrosion or short circuit can disrupt proper functioning of fuel rail pressure sensor triggering this code.

Honda P0194 Possible Symptoms

1.Illumination of check engine light on the dashboard is most common symptom of p0194.

2.Decrease in engine performance any issue with fuel rail pressure sensor can affect fuel delivery resulting in lack of power to the engine, hesitation or rough idling.

3.When fuel rail pressure sensor provide inaccurate reading to power control module it may lead to improper fuel delivery causing engine to consume more fuel resulting in poor fuel economy.

4.Starting engine may become difficult or engine may take longer time to start than usual.

5.Engine rough idling noticeable vibration or shaking of engine when the vehicle is at a stop.

How To Fix P0194 Honda

1.Visually inspect wiring harness and connectors linked to fuel rail pressure sensor. If any issues are found repair or replace damaged wiring or connectors.

2.Use multimeter to test fuel rail pressure sensor voltage output and resistance, if sensor is found faulty replace it.


Its important to have the vehicle inspected and diagnosed by professional mechanic to find and resolve issue related with Honda P0194 for proper repair.

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