P0190 CHEVROLET Code - Fuel Rail Pressure Sensor Circuit Malfunction
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P0190 CHEVROLET code possible causes
- Low or no fuel
- Faulty Rail Pressure (FRP) Sensor
- Faulty Rail Pressure (FRP) harness is open or shorted
- Faulty Rail Pressure (FRP) circuit poor electrical connection
- Faulty Fuel Pump
How do I fix the P0190 CHEVROLET code?
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.Cost of diagnosing the P0190 CHEVROLET code
Labor: 1.0
The cost of diagnosing the P0190 CHEVROLET code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.What are P0190 CHEVROLET code possible symptoms?
- Engine Light ON (or Service Engine Soon Warning Light)
- Engine will not start
P0190 CHEVROLET code description
The Fuel Rail Pressure (FRP) sensor has a 5-volt reference circuit, a signal circuit, and a low reference circuit. The Engine Control Module (ECM) monitors the voltage on the FRP sensor circuits. When the fuel pressure is high, the signal voltage is high. When the fuel pressure is low, the signal voltage is low. The fuel pressure regulator has a solenoid supply voltage circuit and a solenoid control circuit. The ECM controls the fuel pressure regulator, which regulates high pressure fuel that goes to the fuel injector rails and the injectors.
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