Question about 2001 Ford Focus

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2001 Ford Focus SE Miss Firing

Had a diagnostic test done, Codes P0304, P1131 and P1299 are telling me where the problem is. Can someone tell me what I can do to fix it. These codes tell me it's a Cylinder problem associated with Air intake and Temperature as Code P1299 is a Temperature Sensor and P1131 is also an oxygen sensor...

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  • Anonymous Apr 27, 2009

    I have a problem with the gas. It seems to be that it is running out of gas all the time. It surges on me at times and maybe it is miss firing at times as if it isnt getting any fuel. I just bought it and it has a new inspection tag on it. Ive have it 2 weeks and it started doing this. And I notice that the gas gauge isnt right I drove it 4 miles and the gas gauge said i used a quarter tank of gas. Any hints to what the problem is?

  • tate_kevin May 11, 2009

    My 2001 Ford Focus diagnostic came as miss fire at points #3 and #4. Can some tell what that means?

  • Anonymous Mar 12, 2014

    where is the coolant temperature sensor on 2001 ford taurus se

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2001 ford focus se running rough no code

Posted on Aug 18, 2008

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What type of cyl. problem, compression ,miss fire, if it is a comp. issue more than likely you have a nead gasket problem,you can check this by performing a cyl.compression test you can purchase the tool the other two issuses are simplely fixed by replacing those sensors this could very well elimate the other problem

Posted on Aug 10, 2008

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Code p1131


The codes are for a lean fuel mixture.
Since more than one sensor is giving this reading, I would suspect low fuel pressure or other fuel problems.
Could also be a problem with the cooling system and the coolant temp sensor or air temp sensor not telling the computer the air is cold.

Jan 16, 2013 | 1998 Ford F150 Regular Cab

1 Answer

Diagnostic code p2195 and p1131 for ford focus 2007?


P1131-- Lack of HO2S-11 Switch ,Sensor Indicates lean

P2195-Lack of HO2S-11 Switch,Sensor Indicates Lean


If you have one or two front upstream sensors & have 100,000 miles
on them, replace them as preventative maintenance

The codes are for an Oxygen Sensor closest to the engine,
on the side #1 Cylinder is on

Sensor Codes could be caused buy a leaking injector,
low fuel pressure,running out of fuel,EGR problem,Exhaust
leaks before sensor or converter,any vacuum leak,& other issues

Remove the spark plugs to see if they are fouled from fuel

You can not fix an injector with any fuel tank additive
They have to be removed & mailed away to be cleaned
if they stick open,you could install one if it leaks & is the
only issue.

Oct 01, 2012 | 2007 Ford Focus 1.8

1 Answer

Ford windstar trouble codes p0171-p0174- p1131-p1151-p0305


All these are fuel trim codes and fuel control O2 sensor related codes, you have something that is causing this as all the sensors seldom fail. My advice here is to see a Ford dealer for the diagnostics before any parts are replaced.

Jun 27, 2012 | 2001 Ford Windstar

1 Answer

Hesitation on the 2003 ford focus


Hello! #1...I need to know if the Check engine Light is on...If it is, take the vehicle to an Auto Zone or Advanced Auto (any auto parts store) and they, for free will read the code/codes...send the trouble codes to me and I'll fix your Focus...#2 tell me which engine is in the car; give me the sub model ie...SE, ZTS....etc...If there isn't a CEL tell me....Guru...Saailer

Dec 14, 2011 | 2003 Ford Focus

1 Answer

First I was told it was the EGR valve then was told that I have low compression in the 4th cylander but it would cost me the price of a diagnostic test to truly know. he did one to get the EGR fault code...


after installing the EGR he should have cleared the computer of codes. then when you run the engine, any new fault codes will show up.
but here is a tip for you. you can go to any autozone or orielys parts stores and the will read the codes for free and tell you what your problem may be. from ther you may need further diagnostics at the shop

Feb 12, 2011 | 2004 Ford Focus

1 Answer

My 1998 Ford Contour 2.0L 157k Check Engine Light P1131


These codes are dealer specific. Please call you local dealer and they will give you the exact meaning.

For now I think you may find the code needs to be verified.
Here is my advice.
Have the reading done by - Auto Zone and also Advance Auto all over again. If the codes match
Take down the vin# - call the dealer and tell them the code. Ask them what it means and - -ask if your vin# brings up and recalls or service needs as issued by the factory. Some things never go out of date.

One last this - your header here says 1995 -your note says 1998. You need to sort that out as well.

Jan 28, 2010 | 1995 Ford Contour

2 Answers

How do i fix emission codes p1131 p1151 p0171


TSB
05-22-6
ISSUE:
Some 2001-2003 F-150, 2004 F-150 Heritage and 2001-2003 E-150/250 vehicles equipped with a 4.2L engine may exhibit the malfunction indicator lamp (MIL) on with diagnostic trouble codes (DTCs) P1131 and/or P1151 (system too lean bank 1 or 2). This condition may be due to leaking isolator bolts/port gaskets in the upper-to-lower intake manifold mounting area. This condition is sometimes intermittent and may not be apparent on a warmed-up engine.


SERVICE PROCEDURE

Perform a self test. If DTC P1131 and/or P1151 are the only codes stored in the powertrain control module (PCM) proceed to Step 2. If any additional DTCs are present, follow normal diagnostic procedures found in the PC/ED Manual.

Remove the upper intake and replace only the port gaskets (9H486) and isolator bolt assemblies (9S479). The new isolator bolt assemblies use a rubber material that is green in color, do not install the old isolator bolt assemblies with the black rubber material. Do not replace any other intake parts or gaskets.
While the upper intake manifold is removed, check the exhaust gas recirculation (EGR) orifices that are pressed into each primary port of the lower intake manifold. If any of the orifices are plugged with soot, clean and unplug them with a pick and solvent.

PART NUMBER PART NAME
1L3Z-9H486-AA Port Gasket
3F2Z-9S479-AA Isolator Bolt

Jan 13, 2010 | 2003 Ford F150 Regular Cab

2 Answers

98 E-250 Rough Idle; codes p0156,p1131,p1151,p0301,p0171,p0174+


po301 thru po306 all misfire codes cylinder 1-6 remove plugs and replace them..... set the plug gap first
i suggest u replace the wires also if they never been replaced all these misfire codes can set the others and one is for the oxygen sensor ( 02s or HO2S) CIRCUT MALFUNCTION do u know how to check wireing systems
do the tune up plugs (set gap) .052-.056 change the fuel filter also. clear the codes hows it run
this info is for 98 E-250 4.2Litre
what engine do u have 4.2L or 4.6L i know it is a v-6 by the codes

Dec 15, 2008 | 2003 Ford E250

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