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P0191 code Rough idle. What's the problem to fix

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I'm getting a p0191 sensor 1 on my 2007 explorer. Replaced maf sensor + fuel pressure sensor + fuel pump. Light comes on when engine warm +and then hard to start.


P0191 Ford Fuel Rail Pressure Sensor Circuit Range Performance

SENSOR 1 ??????????? There is no sensor one involved here . After replacing all those parts an not fixing the problem ,suggest you take it to a qualified repair shop. The proper thing to do would be to do the diagnostic's for code P0191 . Do you know what a factory diagnostic flow chart is ? How to test electrical circuits ?

Jan 16, 2017 | 2007 Ford Explorer

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

How do I fix code P0191 on 2013 duramax?


code p0191 refers to rail pressure(FRP) sensor--range/performance problem===causes-- wiring-- FRP sensor.
check for air in the fuel system after a filter change
check FRP sensor and wiring is connected properly.

Mar 06, 2015 | Cars & Trucks

1 Answer

Code P0191 what is the fix?


P0191 fuel rail pressure
P0191.....may be the wiring or the fuel rail pressure sensor.. China OBD2 car diagnostic tools wholesale on CareUCar

Jun 17, 2014 | 2012 Hyundai Sonata GLS Sedan 2.4L 4-cyl....

1 Answer

P0191 code - Intermittent stall - 2006 Ford Explorer 4.6


Sorry but you should take it to the dealer

Apr 18, 2017 | Cars & Trucks

1 Answer

P0191 and p0113 on 2007 ford tauras


Someone has no idea how to diagnose a ford,
I would say

PO 113--Intake Air Temp Circuit High Input
PO 191--Fuel Rail Pressure Sensor Circuit Range/Performance

I wouldn't be installing any parts, until you find the real issues
there,try a different shop or dealer

A fuel pump & cps sensor & give it back to you half
fixed
That was nice & typical of all the people that come here

Mar 10, 2013 | Cars & Trucks

1 Answer

Where is Manifold Absolute Pressure/Barometric Sensor located on 2006 Ford Explorer?


Having similar trouble. Started with 12 codes now after replacing fuel pump and vapor management valve I still have 3 codes P2112 P2104 and P0451. Starts right up but idles very rough little response to pedal. I replaced tps and throttle body motor no change. Is it possible I need to have the PCM flashed? Any help or resolve to someone else's problem helps. Thanks!

Apr 29, 2012 | 2006 Ford Explorer

2 Answers

How to fix 2002 pt cruiser rough idling


Check on intake silicon gaskets, upper and lower. About $18 at autozone

Feb 22, 2012 | 2002 Chrysler PT Cruiser

1 Answer

2003 taurus recently had rough idle and then cut out expecially after 3-4 short trips in a row and then would not start until it had set for 45 min to 1 hr. Now turns over but won't start. P0191...


then it cuts when hot ?
when cold start is it take some time to run from clod ? if yes then injectors nozzles if not then it is the (coil) well cut off when engine is hot

May 31, 2011 | Ford Taurus Cars & Trucks

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