Question about 2003 Kia Sorento

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KIA sorento fuel pump sensor

Fuel pump sensor has 2 wires onto high pressure pump. One wire is ignition live. It's the second wire I can't work out. Should it be an earth? Trying to figure if sensor is faulty Thanks in advance for any help

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Yes, it is earth.

Posted on Nov 05, 2012

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Posted on Jan 02, 2017

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SOURCE: I have a 2004 Kia Sorento that has been with the

Does it cranks when you turn on the key to start.-------- If its not cranking then get the coil and spark plugs checked.-------- Also is the fuel pump coming on when you turn the key on.-------I agree fuel pump is replaced, but is it coming on when you turn the key to on.If the fuel pump is not coming on then get the fuel pump relay inspected in engine compartment fuse box under hood or give direct 12 volt power to fuel pump and turn on the key and see , if fuel pump runs or not.--------- ----------- when you start the car, does the starter gets power, test it with meter. Test the voltages to battery, starter and alternator.--- If battery is weak car will not start, if battery connections are dirty or loose car will not start.If battery to starter connection is loose car will not start, if starter is weak, the car will not start.If fuel pump is not getting voltage the car will not start.-------- So once you confirm that battery, starter , fuel pump all are getting power and all are working, then get the coil pack and spark plugs inspected.This will help.To confirm where the problem lies.Thanks.Helpmech.

Posted on Aug 25, 2011

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SOURCE: 2004 kia sorento after ignition wires replace

wires are crossed and check fuel pump fuse and relay

Posted on Mar 19, 2011

  • 1 Answer

SOURCE: 2000 kia sportage trouble code po171 once in

I have 2005 Kia Sportage with a check engine light. No other symptoms. I was told by Kia and Local mechanic that it is the fuel injectors. Error Code states that Fuel injectors are running lean. Put Master airflow- no change. Ran engine test with propane to run rich and trim never changed from 15. Car runs great. Kia dealer said that this is because we use Ethel in gas that it effects the alumium fuel rail delivery to the injectors and that it is necessary to change all of them .Kia Dealer wants $1,000.00 deposit to place order 6 fuel injectors from Kia. (Has anyone heard of that?)Also put fuel injector cleaner in tank.Does anyone have any suggestions before I spend over $1,000.00 to replace all 6 injectors or possible idea of what could be wrong?

Posted on Jan 07, 2010

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My kia Sorento 2.5 td 2006 was driving along then lost power in 5th so changed down to 4th then I pulled in engine sounded ok so turned it off then saw steam coming from bottom of rad were clip was


Back to basics, then, with checking for gas and spark. Sudden no-starts are usually caused because either gas or spark has been lost. Check fuel pressure with a fuel pressure gauge, and check for spark at a spark plug wire.
Fuel pressure should be within specs-it is pretty high for multi-port injection, about 50 psi, but Kia would have specs. If you have no spark, need to diagnose the ignition system-plug wires, coils, ignition control modules, crank sensor, ecu...

Apr 08, 2017 | Kia Cars & Trucks

1 Answer

Fuel control module 2008 escalade and the fuel pump quit working.if I run a hot wire to it it will run but as soon as I remove the hot wire it quits


Ran a hot wire to what fuel pump or the control module ? Which of these is yours ?
Figure 9: Fuel Controls - Fuel Pump Controls (LY6)
Figure 10: Fuel Pump Flow Control Module (Except LY6) Does yours have fuel pump flow control module under the vehicle Fuel Pump Flow Control Module (except LY6)
Mounted to the left side of the frame assembly below the driver seat ?
Fuel Pump Flow Control Module (FPCM) - LMF
The fuel pump flow control module (FPCM) is a serviceable GMLAN module. The FPCM receives the desired fuel pressure message from the engine control module (ECM) and controls the fuel pump located within the fuel tank to achieve the desired fuel pressure. The FPCM sends a 25 KHZ PWM signal to the fuel pump, and pump speed is changed by varying the duty cycle of this signal. Maximum current supplied to the fuel pump is 15 amps. A liquid fuel pressure sensor provides fuel pressure feedback to the FPCM.
Electronic Returnless Fuel System (ERFS) - LMF
The electronic returnless fuel system is a microprocessor controlled fuel delivery system which transports fuel from the tank to the fuel rails. It functions as an electronic replacement for a traditional, mechanical fuel pressure regulator. A pressure vent valve within the fuel tank provides an added measure of fuel pump flow control module (FPCM). Desired fuel pressure is commanded by the engine control module (ECM), and transmitted to the FPCM via a GMLAN serial data message. A liquid fuel pressure sensor provides the feedback the FPCM requires for Closed Loop fuel pressure control.
If your vehicle has this system check it for DTC'S - diagnostic trouble codes . Will take guess work out of it .
DTC P0191: Fuel Rail Pressure (FRP) Sensor Performance
DTC P0192: Fuel Rail Pressure (FRP) Sensor Circuit Low Voltage
DTC P0193: Fuel Rail Pressure (FRP) Sensor Circuit High Voltage
DTC P0230: Fuel Pump Relay Control Circuit
DTC P0231: Fuel Pump Control Circuit Low Voltage
DTC P0232: Fuel Pump Control Circuit High Voltage
DTC P023F: Fuel Pump Control Circuit
The engine control module (ECM) supplies voltage to the fuel pump flow control module (FPCM) when the ECM detects that the ignition is on. The voltage from the ECM to the FPCM remains active for 2 seconds, unless the engine is in crank or run. While this voltage is being received, the FPCM supplies a varying voltage to the fuel tank pump module in order to maintain the desired fuel rail pressure.
DTC P025A: Fuel Pump Control Module Enable Circuit .
Ford Electronic Returnless Fuel System Diagnosis Part 1 this for ford but the GM system works the same . You'll need a wiring diagram so you know what wires are what . Free wiring diagrams http://www.bbbind.com/free_tsb.html

Oct 31, 2016 | Cars & Trucks

1 Answer

2011 KIA Sorrento 2.4 were is the fuel pressure regulator located. put on adjustable fuel reg .need to disconnect stock one


fuel pressure regulators are normally located in the fuel manifold. They are either vacuum controlled or electronic controlled to maintain the right fuel pressure for engine requirements and to shut off the fuel pump when the ignition is turned off
If your manually adjusted unit will not do all that then you are asking for fault codes to appear and all sorts of problems to occur

Jan 18, 2016 | Kia Cars & Trucks

1 Answer

I have a 2003 Kia Sorrento it backfires and dies when it gets to normal temperature and this has started after I changed my water pump. I checked my temperature sensor and it is good. What could else could...


Please check the following:
- Manifold Absolute Pressure sensor (MAP) or MAF.
- Fuel injector's connectors and wiring.
- Ignition coil's connectors and wiring.
- Vacuum hoses and pipes.
- PCV Valve.
- Spark plugs for any cracks on the insulators.
- Spark plugs gaps.
- Fuel pump pressure.
- Engine Coolant Temperature sensor.
- Cam position sensor.
- Crankshaft position sensor.
- Valve timing.

Mar 13, 2015 | 2003 Kia Sorento

2 Answers

Gas gauge goes to empty after fueling my 2003 kia sorento


Hi. could be a number of things but a likely guess is the float on the in tank sender has sunk as it happened when you filled up. I don't know the sorento personally but often under the back seat there is a black plastic access panel to the fuel pump and sender assembly. under that will be the pump assembly with a 4 pin plug. 2 thick wires to the pump and two thin wires to the sender, If that's the case link out the two thin wires and the fuel gauge should go to the top with the ignition on. That will prove if its the fuel gauge sender. Jon

Sep 12, 2014 | 2003 Kia Sorento

1 Answer

2003 kia Sedona won't. start


If this is a sudden occurrence and nothing suspicious happened prior, you most likely lost either gas or spark to the engine. You need to check for both.

Do you hear the fuel pump in the gas tank buzz on for a couple of seconds when you turn the ignition key to ON? Unless the fuel pump turns on and puts gas under high pressure at the fuel injectors, the engine cylinders won't get gas to start. Correct fuel pressure is crucial to know if you have a fuel pump (or fuel filter) problem. If the pressure is correct, it is probably not a fuel problem but a spark problem, although there are less common instances where a fuel injector circuit may malfunction.

The ignition system not producing spark at the spark plugs is the other common problem of no starts. Buy a cheap spark tester at a parts store, plug it into one of your spark plug wires, then crank the engine over and watch for a strong blue spark. You might need a helper to do this. If you see a consistent spark, the ignition system is probably good, although you should probably check more than just one plug wire-sometimes one bad ignition coil in a coil pack will cause no starting. Good luck.

Jan 28, 2012 | 2003 Kia Sedona

1 Answer

My Kia Sorento will start and then it won't start, replaced the fuel pump, but did not replace the fuel filter can this be the problem


When the fuel pump was replaced it is important that you install a new fuel filter as it is necessary to have a clean filtered fuel into the pump. Also check the injectors and the spark plugs.
If the spark intensity is low check the HT COILS and the ignition system triggers to the HT coils.
If spark is good then the fuel pressure and calibration must solve the issue.
Take help for consensus.
Thank you for using fixya.

Aug 09, 2011 | 2003 Kia Sorento

1 Answer

Diagram of how to change spark plugs on a 2003 kia sorento


Hi there...i don't have room to post the complete diagrams here, but i can walk you through the steps. It's a little harder for a do it yourselfer than most cars, because the intake manifoild has to come off---one of the reasons a shop charges so much too...and a proper set of tools is very helpful. Your manual will have pictures, to help you identify the parts i describe here...ok u ready?

Take off the plastic engine cover and set aside. Don't lose the the little acorn nuts.

1. Remove the air intake hose connected to the throttle body.


2.

Remove the accelerator and cruise control cables.

3.

Remove the engine coolant hose and throttle body.

4.

Remove the P.C.V. hose and brake booster vacuum hoses.

5.

Disconnect the vacuum hose connections.

6. Remove the surge tank stay.

7.

Bleed off the pressure in the fuel pipe line to prevent the fuel from spilling & squirting you in the eye.

8.

Disconnect the connector from high pressure hose.

9. Remove the surge tank and gasket...be careful with gasket, you can reuse it.

11. Remove the delivery pipe with the fuel injector and the pressure regulator....
When the delivery pipe is removed, be careful not to drop an injector.

12.

Disconnect the wiring harness of the coolant sensor assembly.

13.

Remove the surge tank.

Ignition coils and ignition wires:
disconnect ignition coil harness connectors

disconnect ignition wires from ignition coils

remove hold down bolts from ignition coils

while gently twisting pull up and remove ignition coils

while gently twisting pull up and remove ignition wires

remove spark plugs (always check gap on new plugs, even if they say they are "pre-gapped" )

Install in reverse order, don't over torque anything and keep your work area clean. Now would be a good time for wire replacement too---depending on the mileage on your Kia

Do a good visual inspection of hoses, clamps, wires & pulleys while you have it "opened up" ---Good luck, thanks for using fixya and i hope you get many more trouble free miles out of your Sorento. =)












Jul 12, 2011 | 2003 Kia Sorento

2 Answers

I HAVE A 2006 KIA SORENTO. THE CHECK ENGINE LIGHT


p0454 erratic evap pressure sensor signal
p0122 throttle position sensor circuit low
p0113 intake air temp signal low
p0305 cyl #5 missfire
i would look for a short or open wire somewere
i checked TSBs from kia and none pertain to you
clear codes and drive then check to see if they come back. then repost

Mar 24, 2010 | 2006 Kia Sorento

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