Question about 2000 Ford Focus

5 Answers

I have a 2000 ford focus. The check engine light is on again after mechanic fixed the mass air flow sensor now the light is on again, what do I need to do to fix the problem?

Mechanic told me the connection to the mass air flow sensor had come loose and he reconnected it again. It was surging a lot. Now the engine light is on again but the car is not surging and is running normal.

Posted by on

Ad

5 Answers

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 246 Answers

Only one way; it's to have it scanned again to see why the light is on.

Posted on Jun 10, 2014

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Novelist:

    An expert who has written 50 answers of more than 400 characters.

  • Ford Expert
  • 245 Answers

I tried everything to resolve this same problem. I went to Autozone autoparts and O'Reilly's autoparts and had them connect their computer gaget to read the codes on my Taurus computer to see what was causing the engine light to be on. They both told me I had a possible bad sensor that It was one out of four sensors that was probably the problem. They could not tell me which of the four sensors was bad. I tried gas additives that i purchased at the auto parts to try to clean up which ever sensor was malfuncting. Nothing worked. then one day a local grocery store was having a purchase gas card and get eleven cents off purchase price. I had never purchased gas there but couldn't pass up the eleven cent discount. This gasoline had 10% ethanol in it. after i purchased two fill ups at that grocery store gas station, my engine light turned off. I continued to purchase gas there til the eleven cent promotion was over. I then start to purchase gas at my usual gas station. the engine light came back on the next day. this engine light had been off for several months while i was purchasing gas at the grocery store gas station. on my next fill up i purchased it from the grocery store gas station at their regular price....the engine light turned off an hour later. apparently the additive in the gas cleaned my sensor. my engine light has been off because i purchase my gas at the grocery store gas station. you might want to purchase your gas perhaps at Shell or Exxon and add the engine additive that is an option at the pump.try it for at least a couple of fill ups and see what happens. Good luck.

Posted on Jun 03, 2014

Ad
  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Governor:

    An expert whose answer got voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Expert
  • 163 Answers

Is it the same code.

Posted on May 28, 2014

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 550 Answers

Hi,
You'll need to get the Check Engine Light (CEL) checked. You can probably do this for FREE at an auto parts store. Call around and see which ones will test for free. This will give you the 'code' for the light. Reply back here or call the mechanic and ask 'Why do I still have a CEL?' Don't pay to fix the same issue.
Good luck,
Td

Posted on May 26, 2014

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Expert
  • 195 Answers

Then probably the check engine light is because of something else, and could be a number of things. Heck it could even be a badly screwed gas cap, since it keeps the tank air tight and newer cars like yours test what they call the EVAP system and will turn on the check engine light if it finds even a very small leak. On my car right now i have a check engine on because the filler neck is rusted and so the gas cap doesn't seal correctly just so you know how far this can go. So if you really want to get the light off, you will need to have to codes pulled out of the computer to see what the problem is this time and fix it. Sorry if this isn't exactly a precise answer, but the check engine light is only there to let you know there is something out of wack, be it big or small, important or not, and there are close to about 1000 different codes that can be given by the computer that will light up the check engine, so without any codes, all we can do is poke in the dark until we find the target, so you will definetly need to get a scanner plugged in the OBD plug to get the codes out and find out what's wrong. That doesnt mean you HAVE to get it fixed on the spot though, most garages will charge a small fee just to get the codes out and give them to you if you want to fix it yourself. So just go to a garage you trust, or a good friend which also happens to be a mechanic with a scanner and have the codes checked. After that, feel free to write me up and i'll help you fix the problem. Hope this helps :)

Posted on May 24, 2014

6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

autodr
  • 260 Answers

SOURCE: Cleaning the Mass Air Flow Sensor

i will try to help. 171/174 indicates lean condition in engine. the mass air flow sensor is located in the rubber tube going to throttlebody. you can try to clean it. using mild carb cleaner safe for sensors, remove sensor from tube. spray clean the tiny wires located in the cylinder. do not touch them, they are very delicate. these engines are also notorious for leaking intake gaskets and faulty pcv valves. these will all set these 2 codes. feel free with anymore questions.

Posted on Nov 15, 2008

emissionwiz
  • 76673 Answers

SOURCE: How easy is it to fix the throttle position sensor myself?

Yes U can fix it yourself if u have common hand tools.

Posted on Dec 16, 2008

philriden
  • 146 Answers

SOURCE: 06' Ford Explorer engine light wont go off after repair

Yes, that sounds correct to be calibrated.and probably is what is causing your problem. Mass air flow sensors hardly ever go bad. They get dirty and set a code. Garages will try to sell you one when you can clean it with a throttle body cleaner. If you have your old one, clean it and put it back on, try it to see if it works better.

Posted on Jan 07, 2009

Molson02536
  • 3854 Answers

SOURCE: check engine light

It might but what exactly are the codes. Before you change the Mass air flow sensor, try cleaning it first with a can of mass flow cleaner.
If your running a oil K&N filter, there could be some oil residue on the sensor. Start with that and change the filter or clean it if it's a K&N.
The O2 sensor's could be bad also, you really need the code's to be sure what sensor is giving you the faulty signal.
Good luck and hope this helps.

Posted on May 05, 2009

  • 532 Answers

SOURCE: runs rough when cruising at 35-40 mph

try pulling off the air breather hose and look inside at the mass air flow sensor,it looks like a wire with a diode hooked to it incase you didnt know,see if there is any fuzz on it,sometimes the air filter will lose small pieces and the mass air flow sensor catches it.If that doesnt work then you may have a fuel problem,weak pressure,causing the mass air flow sensor to read too much air so it tricks the computer to adjust the issue.

Posted on May 21, 2009

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Symptoms of faulty air flow sensor


  • How to Detect and Clean a Faulty Mass Airflow Sensor ... www.carsdirect.com > Car Repair > Engine Repair 2012-02-24 · Symptoms of a Faulty Mass Air Flow Sensor ... Here are some of the most common symptoms of a faulty mass airflow sensor: ... CARSDIRECT IS AN ...
  • Mass Airflow Sensor: An Easy Fix for Big Problems from a ... www.airtexproducts.com/news-blog-mass-airflow-sensor-an-easy-fix... news,blog,mass,airflow,sensor,an,easy,fix,for,big,problems,from,a,little,instrument. ... Mass Airflow Sensor: ... What Are the Symptoms of a Faulty Mass Air Flow Sensor?
  • Signs & Symptoms of a Faulty Mass Air Flow Sensor www.geeksofcars.com/list_5794328_signs-mass-air-flow-sensor.html Signs & Symptoms of a Faulty Mass Air Flow Sensor. The Mass Air Flow Sensor is a device used on many fuel injected automobile engines to measure the density of air ...
  • See Bad Mass Airflow Sensor Symptoms on YouFixCars.com www.youfixcars.com/mass-airflow-sensor.html Video embedded · Mass airflow sensor problems can turn on the check engine light. They can also cause a variety of other symptoms before the ... How to clean mass air flow sensor ...
  • How to ' Tell If You Really Need a Mass Air Flow Sensor ... www.youtube.com/watch?v=aDlHCjgYf8s
    • BY AUTO REPAIR QUESTIONS ANSWERED BY WESLEY HARRISON
    • 4 MIN
    2011-08-22 · Video embedded · ... How To Clean a Mass Air Flow Meter and Tell if you really need ... Mass Air Flow Sensor ' Auto Repair ' Wesley Harrison ... Sensor Symptoms ...

  • Videos too.,
  • Go to Bing homepage

    Jul 09, 2016 | Cars & Trucks

    1 Answer

    2003 ford focus check engine light kills motor


    Start with a code reader several items will turn on check engine light and kill the engine Crank shaft sensor, cam shaft sensor, mass air flow meter, exhaust gas re circulation , manifold pressure sensor.

    Jul 23, 2014 | 2003 Ford Focus

    1 Answer

    Where is the mass air flow sensor located on a 2006 ford focus?


    The mass air flow sensor will be fitted in the pipe work that comes from the air filter housing. Find the air filter housing and in the round pipe that goes towards the engine, there will be a wiring connector. this will be connected to your mass air flow sensor. Hope this helps

    Nov 09, 2010 | Ford Focus Cars & Trucks

    1 Answer

    2000 ford focus engine light on. what could be


    Hi
    1 is the car losing power?
    2 is the car rough at idle? or slightly over reving.

    If so most likely cause for 2 is the air mass sensor, this go's to the air box you can cleran them with carb cleaner and sometimes this will fix it.

    Get back to me for more ingo.

    Regards
    Dan

    Feb 09, 2010 | 2000 Ford Focus

    2 Answers

    My 2000 ford focus has codes p0102 and p0113 whats that and what could it be?


    P0102 - Mass Air Flow (MAF) Circuit Low Input
    The MAF sensor circuit is monitored by the PCM for low air flow (or voltage) input through the comprehensive component monitor (CCM). If during key ON engine running the air flow (or voltage) changes below a minimum calibrated limit, the test fails. MAF sensor disconnected
    MAF circuit open to PCM
    VPWR open to MAF sensor
    PWR GND open to MAF sensor
    MAF RTN circuit open to PCM
    MAF circuit shorted to GND
    Intake air leak (near MAF sensor)
    A closed throttle indication [throttle position (TP) sensor system]
    Damaged MAF sensor
    Damaged PCM
    A MAF V PID (MAF PID) reading less than 0.23 volts (Refer to equivalent grams/second chart in GO to Pinpoint Test DC ) in continuous memory or key ON and engine running indicates a hard fault.
    P0113 - Intake Air Temperature (IAT) Circuit High Input Indicates the sensor signal is greater than Self-Test maximum. The IAT sensor maximum is 4.6 volts or -50°C (-58°F). Open circuit in harness
    Sensor signal short to power
    Damaged sensor
    Improper harness connection
    Damaged PCM
    IAT V PID reading greater than 4.6 volts with key ON and engine OFF or during any engine operating mode indicates a hard fault.

    Nov 18, 2009 | 2000 Ford Focus

    1 Answer

    Can you tell me what code po113 is and how to fix it I have a 2000 ford focus I just changed the mass air flow censor and after two min of changing it the light came on


    first unplug mass sensor make sure not corroded or a bent pin when plug back in make sure tight then unplug neg from battery for about 30 minutes will clear codes, might be the sensor itself

    Sep 14, 2009 | 2000 Ford Focus

    3 Answers

    I have a 1995 ford taurus engine stalls when idling and smells of gas when accelerating it bucks. Changed fuel filter, could it be mass air flow sensor?


    Start with smaller problems and check the fuel pressure regulator, the mass air flow sensor for these vehicles is pretty pricy. Is the check engine light on? If so, head to your nearest auto zone and have them check for trouble codes. If the check engine light isn't on, its not likely your mass air flow sensor

    Jul 09, 2009 | 1995 Ford Taurus

    1 Answer

    Check engine light


    It might but what exactly are the codes. Before you change the Mass air flow sensor, try cleaning it first with a can of mass flow cleaner.
    If your running a oil K&N filter, there could be some oil residue on the sensor. Start with that and change the filter or clean it if it's a K&N.
    The O2 sensor's could be bad also, you really need the code's to be sure what sensor is giving you the faulty signal.
    Good luck and hope this helps.

    May 05, 2009 | 2005 Ford Focus

    1 Answer

    Mechanic says I need to replace the mass air flow sensor


    It should be in the airbox region so I would say quite easy.

    Mar 24, 2009 | 2000 Volkswagen Passat 4Motion

    1 Answer

    2003 Ford Focus will not idle


    try cleaning the MAF Mass Air Flow sensor element wire in tube with a toohtbrush and carb cleaner carefully. It gets coated with a film. It is in air inlet hose and has a wiring connector on it. Then drive for 15 minutes so it can learn the clean MAF sensor. Is check engine light on?

    Removal
    1. Remove the air cleaner outlet pipe.
    1d8891a.gif
    1. Disconnect the mass air flow (MAF) sensor electrical connector.
    2c3fe1c.gif
    1. Remove the MAF sensor.
    1006503.gif
    Installation
    1. To install, reverse the removal procedure.
    Otherwise, you may need to adjust idle air control (IAC).

    report on results.

    Mar 19, 2009 | 2003 Ford Focus

    Not finding what you are looking for?
    2000 Ford Focus Logo

    78 people viewed this question

    Ask a Question

    Usually answered in minutes!

    Top Ford Experts

    yadayada
    yadayada

    Level 3 Expert

    76649 Answers

    Colin Stickland
    Colin Stickland

    Level 3 Expert

    22219 Answers

    fordexpert

    Level 3 Expert

    5537 Answers

    Are you a Ford Expert? Answer questions, earn points and help others

    Answer questions

    Manuals & User Guides

    Loading...