Question about 2002 Dodge Neon

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Will not start turns over and fuel is going to rail

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  • Dodge Master
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Do you have spark to the plugs and injector pulse ?

Posted on Jul 27, 2013

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Posted on Jan 02, 2017

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Audi A3 2.0 FSI 2004 I leave the car overnight, the engine turns over but will not fire up. However. a quick spray of "Easy Start", and the engine starts and will start every time that day


Fuel pressure regulator may be going bad. It's supposed to hold pressure in the fuel rail while the engine is shut down. When cranking, the fuel pump has to build pressure again before the injectors will properly inject fuel. Try turning the key on (without cranking) for about five seconds, then back off. Do this two or three times, then try to start the engine. If it starts right away, you need a fuel pressure regulator. These can be located on the fuel rail, or in/on the fuel tank.

Apr 07, 2018 | Audi Cars & Trucks

1 Answer

My code on the 2005 ford mustang said that my fuel rail pressure sensor A Circuit


Does the Vehicle start an run ? What engine does it have ? 4.0 or 4.6 L You vehicle has electronic returnless fuel system , Fuel rail pressure sensor , FPDM - fuel pump driver module . The fuel pump driver module controls the fuel by pulse width modulation
Pulsewidthmodulation (PWM) is a powerful technique for controlling analog circuits with a processor's digital outputs. PWM is employed in a wide variety of applications, ranging from measurement and communications to power control and conversion. The PCM - engine computer uses the fuel rail pressure sensor input to send commands to the FPDM .
What code ? P0--- what ?



P0190 - Fuel Rail Pressure (FRP) Sensor Circuit Malfunction Description: The comprehensive component monitor (CCM) monitors the FRP sensor to the powertrain control module (PCM) for VREF voltage. The test fails when the VREF voltage from the PCM drops to a voltage less than a minimum calibrated value. Possible Causes:
  • VREF open in harness.
  • VREF open in sensor.
  • Vacuum leaks.
Diagnostic Aids: Verify a VREF voltage between 4 and 6 volts. Application Key On Engine Off Key On Engine Running Continuous Memory Fuel rail pressure temperature (FRPT) sensor - GO to DD26 GO to DD26 Fuel rail pressure (FRP) sensor only - - GO to DD1 Fuel rail pressure (FRP) and fuel rail temperature (FRT) sensors - - GO to DD1


P0191 - Fuel Rail Pressure (FRP) Sensor Circuit Performance Description: The comprehensive component monitor (CCM) checks the FRP for acceptable fuel pressure. The test fails when the fuel pressure falls below or exceeds a minimum/maximum calibrated value for a calibrated period of time. Possible Causes:
  • High fuel pressure.
  • Low fuel pressure.
  • Damaged FRP sensor.
  • Excessive resistance in the circuit.
  • Vacuum leaks.
  • Low or no fuel.
Diagnostic Aids: A FRP PID value during key on engine running (KOER) of 138 kPa (20 psi) to 413 kPa (60 psi) is acceptable. Application Key On Engine Off Key On Engine Running Continuous Memory Fuel rail pressure temperature (FRPT) sensor GO to DD34 Fuel rail pressure (FRP) sensor only GO to DD9 Fuel rail pressure (FRP) and fuel rail temperature (FRT) sensors GO to DD9


P0192 - Fuel Rail Pressure (FRP) Sensor Circuit Low Input Description: The comprehensive component monitor (CCM) monitors the FRP sensor circuit to the powertrain control module (PCM) for low voltage. If voltage falls below a calibrated limit for a calibrated amount of time during testing, the test fails. Possible Causes:
  • FRP signal shorted to SIG RTN or PWR GND.
  • Damaged FRP sensor.
Diagnostic Aids: A FRP PID value during the key on engine off (KOEO) or key on engine running (KOER) less than 0.3 volt indicates a hard fault. Application Key On Engine Off Key On Engine Running Continuous Memory Fuel rail pressure temperature (FRPT) sensor GO to DD26 GO to DD26 GO to DD39 Fuel rail pressure (FRP) sensor only GO to DD1 GO to DD1 GO to DD14 Fuel rail pressure (FRP) and fuel rail temperature (FRT) sensors GO to DD1 GO to DD1 GO to DD14


P0193 - Fuel Rail Pressure (FRP) Sensor Circuit High Input Description: The comprehensive component monitor (CCM) monitors the FRP sensor circuit to the powertrain control module (PCM) for high voltage. If voltage exceeds a calibrated limit for a calibrated amount of time during testing, the test fails. Possible Causes:
  • FRP signal shorted to VREF or VPWR.
  • FRP signal open.
  • Damaged FRP sensor.
Diagnostic Aids: An FRP signal high condition can be caused by any number of conditions, including a short on FRP signal to VREF, a more positive voltage level, an open FRP signal or signal return. The FRP signal line is pulled up by the PCM and VREF at the sensor, and down by the sensor through SIGRTN. Application Key On Engine Off Key On Engine Running Continuous Memory Fuel rail pressure temperature (FRPT) sensor GO to DD26 GO to DD26 GO to DD39 Fuel rail pressure (FRP) sensor only GO to DD1 GO to DD1 GO to DD14 Fuel rail pressure (FRP) and fuel rail temperature (FRT) sensors
P1233 Ford Fuel Pump Driver Module Diagnostics and Repair

FPDM Live

Jan 14, 2018 | Ford Cars & Trucks

1 Answer

Mechanical


Check fuel pressure at the fuel rail. Go to OReilly's and rent a fuel pressure gauge. There is a port on the fuel rail that you will be able to hook the gauge to. Turn your key forward and the fuel pump pressurizes the fuel system. While you are at the parts store ask them what the fuel pressure should be and compare with your results.

Jun 22, 2013 | Honda Accord Cars & Trucks

2 Answers

My 1995 grand cherokee takes a lot to start. turns over fine, but won't fire. checked fuel rail, no pressure. after trying 15 times or so, it will start and run just fine. starts right back up unl


Your Jeep has what's known as the delayed start, no check engine light problem. The Jeep will not start until the check engine light comes on, on the dashboard. Next time it cranks but will not start, look at the dashboard to see if the check engine light is illuminated. If it's not lit up, then your Jeep does have that problem and your Jeep ecu is in need of repair or replacement. There are components inside the ecu that are going bad and will continue to get worse, eventually leading to a permanent no start condition. There are ecu repair services and replacement ecus on ebay.

Jan 17, 2013 | 1995 Jeep Grand Cherokee

1 Answer

I have a 97 s10 just swaped 2.2 motors both ran going in to the shop now it cranks and i have spark and fuel going to the rail but wont start if you spray starting fuild it starts on it then dies


If you have fuel at the rail, and a spark, then your problem is either a clogged fuel rail or clogged injectors. Try cleaning or replacing the fuel rail first, then the injectors if that doesn't work.

Jun 19, 2012 | 1997 Chevrolet S-10 Pickup

1 Answer

The car for a few weeks now has been getting harder and harder to start, like fuel pump is going out, we have to turn key on and off a few times to get fuel to the rail. Now it wont run at all, it will...


The fuel pump pressure is an essential bit of information you need. Before you drop the fuel tank to replace the pump, check your fuel filter. that may be all you need.

Jul 20, 2011 | 1986 Chrysler LeBaron

2 Answers

How do i know if the fuel pump is not working


Do not attempt this unless you know your way around under the hood.
Use protective gear: safety glasses and protective gloves.
Somewhere on or near the fuel rail on your engine will be a plastic cap that is the same as a tire valve cap. Remove it. Underneath will be a pressure release valve, also much like your tire valve.
Cycle your key to the on position (not the start position) for 2-5 seconds. Turn key back to off position. Immediately go to the valve on the fuel rail and push the needle down. If the fuel pump is working, you shouls have fuel spray out of the valve quite quickly. The pressure in the fuel rail is about 40-50psi if the pump is working.
Hope this helps!

Jul 25, 2009 | 1997 Pontiac Trans Sport

1 Answer

1998 wrangler efi system


FUEL PUMP WILL PUT PRESSURE IN FUEL RAIL FOR YOU. sounds like fuel pressure in the fuel rail is losing pressure usally caused from fuel pump starting to go out. check pressure with fuel gauge. screw it onto the fuel rail connection turn the key forward (do not start ) then turn key off presure should hold around 16 psi. if the gauge starts to drift back down then the fuel pump is going to go out ( sometime)

Sep 03, 2008 | 1998 Jeep Wrangler

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