Fuel Rail Pressure Sensor

Explains the Fuel Rail Pressure OBD-2 Scanner Parameter. The fuel rail pressure sensor is used by the ECM to control the fuel pump motor speed. In an effort to protect the fuel lump electric motor, a fuel rail pressure sensor and software modules are employed. At slower or cruising speeds there's little need for large fuel consumption, so the fuel pump voltage and speed are reduced. The end result is a FP that lasts longer. See it here; how it works and how to test it. (note: We allow all schools and training institutions to use our software free of charge, so long as it is not sold to others. You're encouraged to download our free automotive simulation software for more information.

Category:

Autos & Vehicles

Tags:

• Scanner
• Automotive
• automotive technology
• sensor
• diagnostics
• electrical
• fuel rail pressure sensor
• fuel pressure
• fuel sensor
• mandy concepcion
• auto repair
• auto diagnostics
• P0087
• P0088
• P0089
• P0090
• P0091
• P0092
• P0093
• P0094
• P0190
• P0191
• P0192
• P0193
• P0194
• software
• technology
• fuel rail
• fuel
• auto school

[Nigelk388]

fuck this carburetor is still king

[skatebreedUK]

@TheViperCars make sure you have a suitable amount off both oil and coolant in your vehicle. if that is not the problem then try take it to a mechanic who can actually see the vehicle as it is very hard to work out the cause of the problem without doing basic checks on the vehicle which unfortunately cannot be done online

[TheViperCars]

Can you help with an isue on a 2004 Megane 11. The car runs well until the vehicle gets heated then the car shuts down and the check injection message and check gearbox message comes on. The vehicle will only restart if the fuel pressure sensor is disconnected or the vehicle is cool.

[ADPTraining]

@trainlinezoo Good thinking, although that should have been done at the factory. Sometimes repairs like that are necessary, however. There might have been a recall for that particular issue. Good luck.

[trainlinezoo]

Regarding the shorted wires that you found and corrected: Was the short caused by chaffing? My ECU wire bundles come from the factory simply wrapped in rubber tape. At 30k miles I took a good look at these bundles and found that the engine heat had accumulated at the front fender at top of strut exactly where the wrapped wires touched. There was three out of the four layers of rubber tape simply missing. I ended up wrapping the bundles in heat shield wrap and went to work on all radiating heat.

[ADPTraining]

There are many GMs with variable fuel pressure. Fuel Rail pressure sensors are more prevalent in Fords. Most early variable fuel pressure systems were of two speed types. A simple module controlled fuel pump current. Good luck to all.

[RobertGary1]

In the GM's I've worked on the fuel pump pressure is fixed and rail pressure is maintained by a regulator (no electronics involved in the regulator).

[ADPTraining]

Do a search for our free download for the ADPScan-1 or Scan-1. It also has lots of training on its Demo-Mode section. You can ever alter engine parameters and see how they impact operation, while seeing the interactive wiring diagram.

[ADPTraining]

Hello Steve, in regards to your question this is our business. We design and manufacture scanner, scopes, DVDs, books, etc. Check out our ADPScan-1 or Scan-1 Diagnostics System. Our products are for the professional side of things. They're not just code readers.

In today's auto diagnostic world, what you need is massive loads of HELP. Most tools do not give you help. And help geared to your particular problem.

[subevo35]

problem now fixed.i had shorted wires at the ecu.car now running again.fuel rail was ok afterall.thanks again for your help mandy.can you suggest a decent scantool as im now interested in fault finding.regards steve