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I need to know what is the fuel pressure suppose to be when koeo and koer

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42-46 PSI and doesn't lose more than 5 PSI after key is turned off

Posted on Oct 07, 2010

  • yadayada
    yadayada Oct 07, 2010

    both specs are the

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Stalling


first scan for engine code.Codes P0600, P2105, P2107.
throttle body is common problem with ford
second connect fuel pressure gauge and drive
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)

Mar 23, 2014 | 2006 Ford Crown Victoria

1 Answer

I have a 1991 F-150. Runs great but wants to shutoof at stop signs and when you out it in gear sometimes. Any suggestions on the problem? Maybe the TPS?


the first check you should do to solve this issue is a KOER and KOEO. More commonly known as "pulling codes". I have linked the instructions on how to "pull codes". In a nut-shell you need to use a length of wire or paperclip to "ground" a pin on your self test connector (under the hood, driver side). Then, you get in the truck and turn on the key and count the blinks of the check engine light (CEL). This is called a KOEO (key on, engine off) test. For the KOER (key on, engine running) you will need to warm the vehicle to operating temperature then go through series of "press the brake, turn the wheel, press the OD switch etc..." and it will test all of your sensors. Then, it will blink some codes at you once this process is complete. It might be annoying at first, until you get the steps memorized. However, once you've figured out how it works--it'll be a life-saver. Don't replace a component without out doing a KOEO or KOER, first; or your just wasting money. Hope this helps

http://oldfuelinjection.com/?p=13

Jan 19, 2012 | 1991 Ford F150

1 Answer

91 ford f-150 5.0 l has irregular idle and around 1500 rpm when driving it it start to lose power like its choking and drops to about 1000 rpms


the first check you should do to solve this issue is a KOER and KOEO. More commonly known as "pulling codes". I have linked the instructions on how to "pull codes". In a nut-shell you need to use a length of wire or paperclip to "ground" a pin on your self test connector (under the hood, driver side). Then, you get in the truck and turn on the key and count the blinks of the check engine light (CEL). This is called a KOEO (key on, engine off) test. For the KOER (key on, engine running) you will need to warm the vehicle to operating temperature then go through series of "press the brake, turn the wheel, press the OD switch etc..." and it will test all of your sensors. Then, it will blink some codes at you once this process is complete. It might be annoying at first, until you get the steps memorized. However, once you've figured out how it works--it'll be a life-saver. Don't replace a component without out doing a KOEO or KOER, first; or your just wasting money. Hope this helps

http://oldfuelinjection.com/?p=13

Jan 02, 2012 | 1991 Ford F150

1 Answer

Change distr.cap rot. and plugs and wires still has slight miss but not all the time...


the first check you should do to solve this issue is a KOER and KOEO. More commonly known as "pulling codes". I have linked the instructions on how to "pull codes". In a nut-shell you need to use a length of wire or paperclip to "ground" a pin on your self test connector (under the hood, driver side). Then, you get in the truck and turn on the key and count the blinks of the check engine light (CEL). This is called a KOEO (key on, engine off) test. For the KOER (key on, engine running) you will need to warm the vehicle to operating temperature then go through series of "press the brake, turn the wheel, press the OD switch etc..." and it will test all of your sensors. Then, it will blink some codes at you once this process is complete. It might be annoying at first, until you get the steps memorized. However, once you've figured out how it works--it'll be a life-saver. Don't replace a component without out doing a KOEO or KOER, first; or your just wasting money. Hope this helps

http://oldfuelinjection.com/?p=13

Dec 21, 2011 | 1991 Ford F150

1 Answer

I want to know what's the normal pressure on the 2000 expedition fuel pump


Here is the normal fuel pump pressures for the 2000 Ford Expedition with the 5.4L SOHC Vin L >>

Key ON Engine OFF (KOEO) 35-45 psi Key ON Engine Running (KOER) 28-45 psi

Here are your pressures if this is the 4.6L SOHC >>

Key ON Engine OFF (KOEO) 30-45 psi

Hope this helps with your concern...

Sep 13, 2011 | 2000 Ford Expedition

1 Answer

2005 Lincoln Town Car suffering from low fuel pressure, I have Changed Fuel Rail pressure sensor, Fuel Pump driver, the fuel pump in the tank and the fuel filter but it is still showing only 26 psi 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

Apr 05, 2011 | 2005 Lincoln Town Car

1 Answer

Whats the fuel line pressure on a 1999 ford E350


DIESEL NEEDS 50 - 90 ENGINE RUNNING MEASURE AT PUMP OUTLET

GAS ENGINE IS AROUND 30 - 45 KOER OR KOEO

HOPE THIS HELPS

Aug 10, 2010 | 1999 Ford Econoline

1 Answer

My 450 ford moter home turns over but will not start I suspect feul pump


Hello mfsbrown: My name is Roger and I will help. First thing to check is to make sure the fuel filter dirty. Next you should check the fuel pressure. This will require a fuel pressure tester. You did not say if you have a gas or diesel engine. So I will furnish both test pressures. For a V-10 gas engine. (KOEO) Key On Engine Off 35 to 45 psi. (KOER) Key on engine running 28-45 ps. IF your engine is a diesel then the pressures are (koeo) 30 psi. min. (koer) 30-80 psi. If the fuel pump is your problem. Make sure to replace the fuel filter. A dirty fuel filter will cause damage to the fuel pump. Should you need further help please just ask. Please rate the answer. This way I know it was helpful. Thank You for using Fix Ya. Roger

Oct 28, 2009 | 2001 Ford Super Duty F 450

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