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BMW E46 320d Fy81457

Hi.
my car BMW E46 320d Fy81457 have a Trouble code
3f31 rail pressure sensor, so what can i do? can u help? thx...

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  • dhiren1720 Sep 22, 2008

    My e46 320d has the same problem. The Motor turns but refuses to start, although it would push start with no problems.

  • Anonymous Mar 23, 2014

    clear error

  • Anonymous Mar 24, 2014

    TROUBLE CODE 4B90 RAIL PRESSURE MONITORING ON ENGINE START

×

1 Answer

Replace fuel presure regulator

Posted on Aug 28, 2008

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6ya6ya
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Posted on Jan 02, 2017

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I have replaced the maf sensor,the fuel pressure sensor and the fuel pump, not sure what else to do. The engine light stays on and after some warmup, difficult to start. Thanks for your time.


https://www.yourmechanic.com/article/p0191-obd-ii-trouble-code-fuel-rail-pressure-sensor-circuit-range-performance-by-jamahl-walker

Jan 18, 2017 | Cars & Trucks

1 Answer

What does 3f31 mean on 2008 bmw 320 e90?


perhaps a error in
3F31 Rail Pressure Sensor - Short Circuit to B-

May 29, 2016 | 2008 BMW 320D E90

1 Answer

WHAT DOES ERROR 3F31 STANS FOR?


3F31 Rail Pressure Sensor - Short Circuit to B-
from Mechanicalee Automotive Blog

May 29, 2016 | 2008 BMW 320D E90

1 Answer

My 2007 Toyota isis iaz.read code P0191


Anon, Trouble code P0191, You may need a good tech. with scan tool to read and test system.
  • Fuel Rail Pressure Sensor Circuit Range/Performance,computer see's signal from the Fuel Rail Pressure Sensor and/or its circuit is sending erratic readings, indicating a fuel pressure condition that is abnormal. Problems could be out of gas, leaking fuel, faulty fuel pressure sensor, bad wire or plug in circuit,fuel pressure regulator, the fuel pump could be faulty also. Check the attached links,instruction and guides, Good luck
    "I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
P0191 OBD II Trouble Code

P0191 Fuel Rail Pressure Sensor Circuit Range Performance

RAV4 2001 Trouble Code p0191 probable solution Toyota Nation Forum Toyota...

code P0191 2007 Toyota Google Search

May 03, 2016 | Toyota Cars & Trucks

1 Answer

P0191 trouble code


Code 191 is for a fuel rail pressure sensor that is out of range.
The sensor and circuit would need to be checked with a scanner.
The sensor is telling the computer fuel pressure is too high or too low.

Sep 07, 2015 | Chevrolet Blazer Cars & Trucks

1 Answer

Where is fuel rail pressure sensor high input located on a mercury mountaineer


If you are talking about a trouble code for the pressure sensor, the sensor may be telling the computer the fuel pressure is too high. The sensor is mounted in the fuel rail on the engine.

Aug 25, 2014 | 2004 Mercury Mountaineer

1 Answer

2002 taurus code po191


That is P0191 not o.
P0191 FORD - Fuel Rail Pressure Sensor Circuit Range/Performance

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

Oct 05, 2012 | 2002 Ford Taurus

1 Answer

How to fix codes p0190 & p0193 fuel rail pressure sensor codes


The two codes are both about the fuel rail pressure sensor. I would check fuel pressure with a gauge first.
If pressure is low try the fuel filter before anything else.

P0193 FORD Description 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.
Read more: http://engine-codes.com/p0193_ford.html#ixzz21vmKrzhU

Jul 28, 2012 | 1998 Ford Escort

2 Answers

What do trouble codes 67,81, and 82 mean for a 1993 Chevy Astro Van? THX


67 a/c pressure sensor circuit or a/c clutch circuit failure

81 brake input circuit fault
82 ignition control (IC) 3X signal error

Dec 23, 2010 | 1993 Chevrolet Astro

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