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Cylinder is filling up with fuel not keeping pressure in fuel rail

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  • Cars & Trucks Master
  • 52,175 Answers

Sounds like a bad injector to me .

Posted on Apr 26, 2015


6 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

  • 41 Answers

SOURCE: car will not start,but has spark and gas to fuel rail,plenty of pressure at fuel rail

You need a scan tool to go any further.

Posted on Nov 10, 2008

  • 15 Answers

SOURCE: 98 cherokee will not start but will turn over. It

could be the fuel pump, fuel pump fuse, relay or wiring. Also check the crank sensor on this vehicle. They are known to go bad or come loose causing the vehicle not to start.

Posted on Aug 18, 2009

  • 430 Answers

SOURCE: no pressure to fuel rail 90 Ford Bronco Fullsize


Posted on Aug 29, 2009

  • 3 Answers

SOURCE: 2007 chevy aveo does not start, Iam getting fuel

Switch ignition relay with power window

Posted on Feb 12, 2010

  • 71 Answers

SOURCE: 2005 Lincoln Town Car suffering from low fuel

The ford spec listed in the ford engine control manual is:

General Specifications Item Specification Fuel tank capacity 71.9L (19 gal) Fuel Pressure Hot restart 448-482 kPa (65-70 psi) Key ON Engine OFF (KOEO) 140-415 kPa (20-60 psi) Key ON Engine Running (KOER) 170-280 kPa (25-40 psi)

Are you measuring the fuel pressure with a mechanical gauge or are you using a scan tool . If with a mechanical gauge, does the gauge have an air purge? What symptoms does the vehicle present. If running rough you could have a fuel injector leaking. Are you measuring the fuel pressure with the key on engine off? If so, did you cycle the key a few times? Good luck

Posted on Apr 05, 2011

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I got a 2008 skidoo expedition 800 4 stroke keep shutting off for fuel put new fuel filter now she won’t start at all no turning over you can hear the fuel pump start and that is it no whining over just...

Remove the plugs and check for a flooded cylinder. The fuel rail holds fuel pressure and when up to pressure a valve opens it to allow the excess volume to go back to the tank. If it's ruptured it won't allow proper pressure to develop to rn and could also allow fuel into the crank case by filling a cylinder and going past the rings. Check the oil level and for gas.

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Hi i a 20tdci that wont start but will start with sniff

It sounds like you have a defective fuel pump. Use a pressure gage and check the fuel pressure at the fuel supply rail to the fuel injectors, There is what looks like a tire fill valve on the rail, that is the test port.

Jul 15, 2016 | Cars & Trucks

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This report comes from the fuel rail pressure sensor and is advising that the pump is not providing sufficient fuel to keep up the pressure or the pressure regulator is not operating correctly( vacuum line if connected) or the fuel filter is blocked or the tank is not venting correctly. IT may even be the sensor itself is faulty

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2002 mazda millenia fuel pressure relay location

you are looking for the fuel pressure regulator.what motor do you have ? the 4 cylinder or the 6 cylinder. if the 6 cylinder it is at the end of the fuel rail next to the throttle body

Jan 28, 2013 | Cars & Trucks

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Free_Schematic_Diagram2000 toy tacoma fuel line

Don't have a diagram, but maybe I can help. Do you see the injectors? They are held on by o-rings to the "fuel rail". On a v-6, there would be two fuel rails connected together with piping. The line from your tank goes right into this fuel rail, and with the pump, keeps a steady pressure up to feed the injectors. On one end of the fuel rail is a small circular object with a vacuum line. That is your pressure regulator. It keeps the pressure constant, and the excess fuel goes out the regulator and into your fuel return line, back into the gas tank. The fuel rail would be on top of the intake manifold, bolted down. Hope this helps.

Oct 21, 2011 | Cars & Trucks

1 Answer

Have a 2007 mitsubishi L200 4D56 command rail engine that will not run. The only way I can make this engine run is to unplug the pressure sensor located on the end of the fuel rail. Even then, it will only...

In your case the pressure sensor is faulty and needs to be replaced. 1) Stores pressurized fuel (25 to 180 MPa) that has been delivered from the supply pump and distributes the fuel to each cylinder injector. A rail pressure sensor and a pressure limiter valve are adopted in the rail. 2) The rail pressure sensor (Pc sensor) detects fuel pressure in the rail and sends a signal to the engine ECU, and the pressure limiter controls the excess pressure. This ensures optimum combustion and reduces combustion noise. ---- Rail • The rail is mounted between the supply pump and the injector, and stores the high-pressure fuel. --------- Injector:-------- • This injector replaces the conventional injection nozzle, and achieves optimal injection by effecting control in accordance with signals from the engine ECU. Signals from the engine ECU determine the duration and timing in which current is applied the injector. This in turn, determines the quantity, rate and timing of the fuel that is injected from the injector. ------------ Rail Pressure Sensor (Pc Sensor) 1) The pressure sensor detects the fuel pressure of the rail, and sends a signal to the engine ECU. The sensor is made from a semiconductor that uses the Piezo resistive effect to detect changes in electrical resistance based on the pressure applied to the elemental silicon. In comparison to the old model, this sensor is compatible with high pressure. ---------- There is a service manual for how the fuel rail sensor and fuel system works.Its for mitsubishi L200 4D56.----------- Click this link for referring the service manual:--- ----------- This should help.thanks.Helpmech.

Jun 22, 2011 | Mitsubishi Pickup Cars & Trucks

1 Answer

P0193 - P1188

P0193 - Fuel Rail Pressure Sensor Circuit High Input
The Fuel Rail Pressure (FRP) sensor is a diaphragm strain gauge device in which resistance changes with pressure. The electrical resistance of a strain gauge increases as pressure increases, and the resistance decreases as the pressure decreases. The varying resistance affects the voltage drop across the sensor terminals and provides electrical signal to the Powertrain Control Module (PCM) corresponding to pressure.

Strain gauge type sensors are consider passive sensors. A passive sensor is connected to a voltage divider network so that varying the resistance of the passive sensor causes a variation in total current flow.

Voltage that is dropped across a fixed resistor in series with the sensor resistor determines the voltage signal at the PCM. This voltage signal is equal to the reference voltage minus the voltage drop across the fixed resistor.

The FRP sensor measures the pressure of the fuel near the fuel injectors. This signal is used by the PCM to adjust the fuel injector pulse width and meter fuel to each combustion cylinder.

- Engine Light ON (or Service Engine Soon Warning Light)
- Engine will not start

Possible causes
- Excessive resistance in the circuit
- Low or no fuel
- Wiring harness connector of the fuel pressure sensor
- Fuel Rail Pressure Sensor
- Fuel Pump

P1188 Fuel Pressure - Leakage

Keep in touch.

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I have a 2006 GMC W4500 Diesle and these are the read codes (mode 3) that I recieve when it is hooked up P 0087 fuel pressure to low P 0093 fuel system leek detected / large P 0302 Cylinder 2...

Have you serviced the fuel filter/water/seperator/heater? P0093 could also refer to the possibility you filled the truck up with fuel when it was running setting that code. The code for fuel pressure is derived at the rail delivery on a Duramax, again check the fuel filter, or there is a obvious leak somewhere. Hard to tell without looking at it, but start there. Is fuel cap sealing, look at O ring in cap make sure it is not degraded or missing. Other than that could be pump (delivery) for fuel, costly. Look for wetness from the tank, lines, pump, etc...

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Hi, my 2001 Pontiac Grand am SE 4 cylinder 2.4 engine has been starting very "rough" as it runs however it eventually fixes itself. Also my coolant has been "disapearing" i keep having to refill the...

Probably needs cylinder head and gasket, for that rice. Cylinder head gasket is around $1700-1800.00.
Fuel pressure regulator is not too difficult, you have to disconnect fuel line where it goes into fuel rail. and remove regulator, then install new regulator and put fuel line back in. You will loose some fuel, so loosen fuel line slowly, and put a rag around it to keep if from spraying out too badly.
Hope this helps.

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