Question about 2001 Subaru Outback

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I have a 2001 Subaru outback 2.5 I've done the fuel filter the fuel pump 02 sensors battery ignition coil wire and spark plugs it sounds flooded only three 2 codes when I hooked it up and that was front and back o2 sensors

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  • Subaru Master
  • 604 Answers

Sounds as if your fuel pressure regulator has gone bad. You didn't say what codes the O2 sensors tripped. I would change the regulator before chasing down the sensor code. I hope this helps. Take care.

Posted on Jun 20, 2019

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6ya6ya
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Posted on Jan 02, 2017

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richardsimpl
  • 230 Answers

SOURCE: aurora 1997 i have changed the fuel pump,, fuel filter plugs,

Hi there
sounds like you done allot to this car. did you clean your gas tank? Reason i say this there are times you get bad gas that water with it. and it sounds like you got water in your tank. need to get it out. Try this get some rubbing alcohol and poor it in your tank. It won't hurt it. It will soak up the water that's in your tank. try this and let me know how it goes.
Thank you for writing to fix ya.
Best Regards Richard

Posted on Dec 29, 2009

Testimonial: "yeah, i did that this morning, the gas tank had a bunch of **** in it, changed fuel filter, tank needed cleaned same prob still thanks though"

roniecon
  • 6927 Answers

SOURCE: 02 gmc sonoma 4.3 engine starts and runs great for

Smell of the oil,to see if the fuel injector(spider)is leaking into the crank case,if so,the intake will have to be removed to repair the problem,oh,and change the oil.

Posted on Jul 11, 2010

  • 36 Answers

SOURCE: 93 mustang lx turns over

I suggest you check for spark by taking a spark plug wire off one of the spark plugs and using one of your old plugs and crank it over and see, it wouldn't be the first time a module died on a Ford. Plus if you have a fuel pressure tester hook it up and check for proper pressure if no gauge just shoot a couple of squirts of engine start or carb spray in the intake if it starts something wrong with your fuel system recheck wiring conections if you don't hear fuel pump, turn on key from 3 to 5 seconds fuel pump should run to prime fuel rail then stop, if not check fuel system.

Posted on Oct 13, 2010

  • 5370 Answers

SOURCE: running a little rough at

As you mentioned that spark plugs are replaced,so with new spark plugs,this can be fuel related problem.Get the fuel pressure tested.If the pressure checked out low then can be faulty fuel pump and clogged fuel filter.But as you mentioned,that before replacing the parts,it was running rough,as per that clean the MAF sensor and see.The MAF sensor is located on top of the air box, the black plastic box on the right side of the engine. It is held in place by two little screws and has a wire harness clipped to it.Remove this sensor and clean it,then reconnect it and checked. also try spraying some starter fluid in the intake and see.If it starts,then its fuel pressure regulator problem.The fuel is actually not reaching the fuel rail,due to this engine turns over but will not start running,because the fuel is not reaching. check the FP regulator by pulling off the vacuum hose that goes to it---if fuel dribbles out of there, then the FP regulator is no good. NOTE:---Do not spray too much starter fluid and if your car starts and runs properly with starter,fluid,dont use starter fluid again n again to start your car.Its just for testing,not for regular driving.Its not good for car.Too much starter fluid can "wash" cylinder walls of their lubrication. Never use it while the engine is actually running.----------------check out this possibilities.This should help.Thanks.helpmech

Posted on Jan 01, 2011

  • 12 Answers

SOURCE: I am experiencing engine hesitation on my 2000

is the check engine light on

Posted on Jul 03, 2011

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1 Answer

Where is the fuel pump relay 98 subaru outback legacy


http://www.subaruoutback.org/forums/66-problems-maintenance/28047-98-obl-where-exactly-fuel-pump-relay.html

Feb 04, 2013 | 2001 Subaru Outback

1 Answer

My 2001 ultra shut down I cranks but no spark. and the check engine light wont come on when I turn ignition on


Hi Anonymous, when checking for spark the CKP needs to measure the compression bump in order to send the correct signal to the ICM/ECM so always check for spark with either a third plug grounded or lift the end of the plug boot 1/2 " off one of spark plugs that are in the head. and the usual suspects are:
1. Fuel tank empty
2. Fuel supply valve turned off.
3. Fouled spark plugs.
4. Engine flooded with gasoline as a result of over use of enrichner.
5. Fuel valve or filter clogged.
6. Vacuum hose to automatic fuel supply valve disconnected, leaking, or pinched.
7. Discharged battery, loose or broken battery connections especially the negative cable at "BOTH" ends
8. Loose wire connection at coil, battery or plug between ignition sensor and module.
9. Spark plug cables in bad condition and shorting, spark plug cable connections loose,
or cables connected to wrong cylinders.
10. Ignition timing incorrect due to faulty ignition coil, ignition module, or sensors " Manifold Absolute Pressure" "Camshaft Position Sensor" "Crank Position Sensor" "Brake Apply Sensor
11. Engine lubricant to heavy ( winter operation )
12. Sticking or damaged valves or push rod wrong length.
13. Primary cam sproket spline sheared or missing spacer.
14. Security alarm system not disarming. 1992 and later Touring Models, fuel pump fuses and relays will be behind the right side panel, starter and ignition relays will be under the seat behind the battery, everything else will be behind the left side panel to access fuses pull back on the front two locking tabs and slide the cover up. For a primary suspect please visit the website below. Good luck and have nice day.Harley Davidson Wiring Diagrams and Schematics Set Change Override Transport Harley Security Alarm PIN Code No Key Fob...

Btw, I’m available to help over the phone in case u need at https://www.6ya.com/expert/gregg_c0ec1df182c7330e


Sep 24, 2012 | Cars & Trucks

1 Answer

I have a 1990 mitsubishi might max it wont run smooth unless you keep your foot on the gas and keep the rpms up a little bit and it wont drive cause it stalls everytime you try to move it. ive replaced the...


You've already eliminated the spark plug & wireset, distributor cap & rotor.
Sounds like your car needs a tune-up, specifically, the PCV (positive crankcase ventilation) valve, and/of the EGR (Exhaust Gas Recirculation) valve.

Components checked/replaced during a tune-up are:
air filter
motor oil
motor oil filter
breather filter
fuel filter(s)
fuel strainer
PCV valve
EGR valve
spark plugs
spark plug wires
ECM or distributor cap & rotor
cabin air filter
transmission oil filter
transmission oil
engine coolant
check all vacuum hoses and lines

Troubleshooting the no-start condition - from the 1990 Mitsu Mighty Max Repair Manual:

Priority Action Part Type -- Cause
1 Inspect Battery -- Battery Discharged or Faulty.
2 Inspect Battery Cable -- Corroded, Broken, Shorted or Poorly Connected Battery Cable.
3 Inspect Distributor Cap -- Distributor Cap Cracked or Burned.
3 Inspect Fuel Filter -- Clogged or Dirty Fuel Filter.
5 Inspect Ignition Coil -- Faulty Ignition Coil.
6 Inspect Wireset -- Worn, Damaged or Faulty Spark Plug Wire(s).
7 Inspect Spark Plug -- Incorrectly Gapped or Fouled Spark Plug(s).
8 Inspect Starter -- Starter Motor Faulty.
9 Inspect Fuel Pump -- Low Fuel Pressure.
10 Inspect Solenoid Switch -- Faulty Starter Solenoid Switch.
11 Inspect Fuel Pump Relay -- Faulty Fuel Pump Relay.
12 Inspect Fuel Injector Pressure Regulator -- Faulty Fuel Injector Pressure Regulator.
13 Inspect Ignition Switch -- Improperly Connected or Faulty Ignition Switch.
14 Inspect Starter Drive -- Faulty Starter Drive.
15 Inspect Fuel Injector -- Dirty or Worn Fuel Injectors.
16 Inspect Fuel Pump Strainer -- Clogged or Dirty Fuel Pump Strainerat.
17 Inspect Engine Control Computer -- Incorrect Operating Information Being Delivered and Sent From The EEC.
18 Inspect Fuel Tank -- Fuel Tank Empty.
19 Inspect Carburetor -- Carburetor Flooded or Faulty Choke.
20 Inspect Distributor -- Worn, Loose, or Incorrectly Installed Distributor.

Aug 17, 2011 | 1993 Mitsubishi Mighty Max

2 Answers

Problem with the ignition it will not turn on it does turn but will not turn on


The pin on the back side of the key may be sheared or the "push" lever may not be moving. Lower your steering column to check.

Apr 17, 2011 | 2001 Ford Focus

1 Answer

My '01 impala 3.4 v-6 flat spots when COLD, at around 20mph. the idle is ruff with random misfires. acceleration is overall poor. when HOT, most symptoms go away leaving only some slight acceleration...


depending on mileage, but possible tune-up could fix it. if already done then check ignition coil pack and ignition wires also spark plugs, check vacuum hoses for leaks or porous, last injectors clogged - use some techron fuel injector cleaner (wal-mart has them). Also get the throttle body and iac valve cleaned by throttle cleaner . Also this other possibilities are to be checked and confirmed.:---- Engine running rough or misfiring can be cause by the following:

1.Defective spark plugs
2.Inadequate spark/coil, defective spark plug wire.
3. Lack of compression
4.False air leakage.
5. Faulty fuel injectors.
6. Insufficient fuel pressure.
7. Contaminated fuel.
8. EGR valve that is leaking.
9. Oxygen sensors.
10. Throttle position sensor.
11. Manifold absolute pressure sensor
12.Mass Airflow Sensor
13.Idle air control valve

--------- This should help.Keep updated.Thanks.Helpmech.

Mar 27, 2011 | 2001 Chevrolet Impala

2 Answers

I have a 2002 subaru legacy outback. It's a


You may need to give the MAF a small shot of carb cleaner across the inside air flow vane. The small wire like elements sometimes get dirty and cleaning them will do wonders.

Apr 07, 2010 | 2002 Subaru Outback

2 Answers

Wont start turns over but no start


1 Inspect Battery Battery Discharged or Faulty. 2 Inspect Battery Cable Corroded, Broken, Shorted or Poorly Connected Battery Cable. 3 Inspect Fuel Filter Clogged or Dirty Fuel Filter. 3 Inspect Distributor Cap Distributor Cap Cracked or Burned. 5 Inspect Coil - Ignition Faulty Ignition Coil. 6 Inspect Wireset Worn, Damaged or Faulty Spark Plug Wire(s). 7 Inspect Spark Plug Incorrectly Gapped or Fouled Spark Plug(s). 8 Inspect Starter Starter Motor Faulty. 9 Inspect Fuel Pump Low Fuel Pressure. 10 Inspect Solenoid Switch Faulty Starter Solenoid Switch. 11 Inspect Relay - Fuel Pumpat Faulty Fuel Pump Relay. 12 Inspect Fuel Injector Pressure Regulator Faulty Fuel Injector Pressure Regulator. 13 Inspect Ignition Switch Improperly Connected or Faulty Ignition Switch. 14 Inspect Starter Drive Faulty Starter Drive. 15 Inspect Fuel Injector Dirty or Worn Fuel Injectors. 16 Inspect Fuel Pump Strainer Clogged or Dirty Fuel Pump Strainerat. 17 Inspect Engine Control Computer Incorrect Operating Information Being Delivered and Sent From The EEC. 18 Inspect Fuel Tank Fuel Tank Empty. 19 Inspect Carburetor Carburetor Flooded or Faulty Choke. 20 Inspect Distributor Worn, Loose, or Incorrectly Installed Distributor.

Jul 02, 2009 | 1997 Ford F250 SuperCab

1 Answer

Miss fire in cylinder #1, 1998 subaru legacy outback


fuel injectors getting ground from pcm?

Oct 29, 2008 | 1998 Subaru Legacy

1 Answer

02 outback 3.0 h6


try you map sensor or your throtle pos sens. your fuel pump is designed to run all the time. it is suppose to run through the fuel rail and back to the tank in a constant cycle.

Jul 04, 2008 | 2002 Subaru Outback

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