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Replaced with new toyota maf reset code now it came back week later

Code po101 came on again changed the maf week ago and reset code now on again

Posted by Anonymous on

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6ya6ya
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Posted on Jan 02, 2017

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SOURCE: check engine light on a 2001 Toyota Corolla

I have had numerous problems with my 01 Corolla. Yikes! You need to understand that Toyota will not submitt to universal parts. You must use their parts. Especially on the Cat Converter. Further, don't EVER go to Meineke for repairs if you haven't already. I use www.partstrain.com to get my authentic parts. They are truly the bomb on pricing.

I had the p171 and p420 codes. I replaced the mass air flow sensor, cat converter, and put on new iridium spark plugs.

Posted on Nov 19, 2008

  • 74 Answers

SOURCE: 2003 Toyota Corolla 30 amp keep blowing

it sounds like when the cat was changed they have trapped a wire or just moved one over a bit and its rubbing think about what items this 30amp fuse is protecting are any of the items close to the exhaust or around that area, i dont see the aftermarket starter doing this after 2 years hope this is helpful regards JR

Posted on May 17, 2009

  • 19 Answers

SOURCE: toyota seinna po440, po441, po446

you have to understand that there is a leak in the system other than the gas cap for the evaporative system. The system needs to be professionally closed, and smoke introduced into to find the leak, and a through component check, eg.. purge valve vapor canister vent solenoid all functioning correctly

Posted on Sep 01, 2009

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SOURCE: reset my maint reqd light

watch this free video instructions on how to reset your maint reqd light if video dosent work go to www.vehix411.com

Posted on Oct 25, 2009

teemossinmia
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SOURCE: 98 4 runner MAF problem. Was replaced 1 year

Make sure that there are no leaks, on your duct hose..where the MAF is located..because if you are getting too much air..the MAF, will try to adjust to it, and it will throw your injectors out of wack, and then you will have a code...stating that you are running too rich, or lean, and then your plugs will foul out, because of too much gas, or not enough...and then it will trickle down to your O2 senors..it's a big chain reaction when it comes down to the MAF sensor...but check your Duct....

Posted on Dec 02, 2009

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P0103 code. I cleaned maf still have same code and stalls. I disconnect maf still stalls. I changed it one year ago code come back after 4 weeks. I have 2000 Hyundai Elantra.


the ecm may be bad,
P0103 OBD-II Trouble Code Technical Description Mass Air Flow (MAF) Circuit High Input What does that mean? Basically this means that there is a problem with the Mass Air Flow High (MAF) sensor or circuit. A more technical description would be that the MAF circuit had higher than expected voltage (air flow). Other MAF sensor circuit DTC trouble codes are P0100, P0101, P0102, and P0104. Symptoms You will likely not notice any serious drivability problems, although there may be symptoms such as a general decrease in power or sluggishness. Causes A code P0103 may mean that one or more of the following has happened: The MAF may be disconnected, or a wiring connection may be bad The MAF sensor may be damaged The vehicle computer may be faulty (very rare) Possible Solutions The simplest thing to do is to reset the code and see if it comes back. Then start with the cheapest, easiest repair procedures: Verify that the Mass Air Flow Sensor wiring is connected properly and that there are no broken / frayed wires. Inspect for any air leaks near the MAF sensor. Take the MAF out and clean it using a spray cleaner such as brake cleaner or electrical contact cleaner. Be gentle with the sensor. Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information) Replace the MAF sensor. Register now to ask a question (free) Related P0103 DTC Discussions 2005 Duramax 6.6 P0103 help I have no clue where to begin looking for the solution to this code. Mass Air Flow (MAF) Sensor Circuit High Voltage is the description of the code, I've looked on various forums and i cant seem to find a definite cause. Ive cleaned the MAF several times with MAF cleaner. I seem to only get this c... 2002 Hyundai accent L 1.5 P0103 Put in a new MAF sensor but code still remains for MAF sensor high voltage. Using scan tool, the airflow rate=920 cf/m and the intake air temp reads -40?F at idle. Both readings are way out of the norm. Not sure what to do next, any ideas would be appreciated. P.S. I traced back the wires for MAF se... 2001 Mazda MPV p0103 & p0174 codes recently, this minivan has a P0103 & P0174 code. researched about the codes and MAF sensor seems like the common denominator between these 2 codes although according to Mazda, P0174 affected part is the fuel injection system where fuel trim system too lean while the 103 has the MAF as the part ... Corolla with MAF codes p0171 p0100 p0101 p0103 I have a 2000 corolla that I bought last fall. It had soft codes that didn't store. Now it has hard codes 0171, 0100, 0101, 0103. Today it started chugging and lurching during hard acceleration. I was a Toyota technician 10 years ago, but never really dealt with this particular model. It has 11... 2002 3.8L Pontiac GPX (P0172, P0101 and P0103) Hello, I have been having some rough starting, rough idle and stalling issues. I have printed off the P0172 page and started to replace items. Two weeks agao I got MAP codes. 1. So I replaced the MAP. It still had a stalling issue/rough idle. 2. So I changed the Idle control, PCV, cleaned my air fi...

Read more at: http://www.obd-codes.com/p0103
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May 30, 2015 | 2000 Hyundai Elantra

1 Answer

Po101 code


Before replacing the mass air flow sensor, try replacing the air filter and cleaning the air flow sensor with low compress air or mass air flow sensor cleaner. Reset code and drive vehicle. Check for air leaks on or around any intake pipework using a good spraying of carb cleaner, if the engine surges then that's the leak. Check wiring to Maf and if the inside is dirty, again use carb cleaner liberally...NOTE: do not use Wd40... If the code comes back, it may be necessary to replaced the mass air flow sensor.

Jun 04, 2014 | 2000 BMW 3 Series

1 Answer

I have a 97 Isuzu rodeo 3.2 and have had a prob with cel flashing when it flashes the truck misfiresthe cel for about a week now i've got PO101 & PO102 PO300 i need to smog can somebody please help M


  • With the engine cold take and spray some carburetor cleaner around the intake. Can't believe so many places left you hanging like this. Lets see, check the PCV valve and the PCV valve and make sure it is not cracked, split, rotted, clogged. I only recommend and use OEM MAF sensors period. I don't car how fancy the name may be. Did you test the harness on your MAF for proper continuity? Check all vacuum hoses for any leak. Also pull your plugs again and see if any of the new plugs are fouled. I have seen a faulty fuel injector, that won't close, cause this.

  • Keep me updated. Hope this helps.
Regards, Tony



Oct 28, 2011 | Cars & Trucks

1 Answer

2001 bonneville po101 maf code Replaced MAF ,MAP (came apart upon removal, pcv (clooged),intake man & gasket (it was cracked),cleaned TB, Cleared the codes.After driving 15 min had a few stutters...


No reflash. Check for vacuum leaks, clear the code. Let the pcm relearn the new sensors. Also check the connectors on the maf for bent pins or disloged pin sockets. Check wiring to make sure no insulation or other damage.

Jul 08, 2017 | 2001 Pontiac Bonneville

1 Answer

Had codepo101 , replaced MAF sensor, cleaned air filter. ran it fora couple miles , service engine light came back on . code po101 back. any ideas??


First make sure the air filter is new or at least clean. If you are using an aftermarket enhancement air filter (like K&N) make sure it isn't over-oiled (the oil will affect the sensors in the MAF) (mass air flow), and contaminate the reading of air volume going to the engine. If the ECM can't monitor or regulate the air flow it will set this code and ignore the input form the MAF. In some cases the MAF wiring was to blame, bad connections, or corrosion.

Jan 29, 2011 | Chevrolet Blazer Cars & Trucks

1 Answer

98 4 runner MAF problem. Was replaced 1 year ago with after market MAF. Check engine light would come on every 3 months. They would clean it and clear code. Now it only lasts 2 weeks. Took it to Toyota -...


Make sure that there are no leaks, on your duct hose..where the MAF is located..because if you are getting too much air..the MAF, will try to adjust to it, and it will throw your injectors out of wack, and then you will have a code...stating that you are running too rich, or lean, and then your plugs will foul out, because of too much gas, or not enough...and then it will trickle down to your O2 senors..it's a big chain reaction when it comes down to the MAF sensor...but check your Duct....

Dec 02, 2009 | 1998 Toyota 4Runner

1 Answer

Code po101, hard start when hot (have to hold W.O.T. to start) & stumbles on accelertion. Changed MASS sensor, no help.


Basically this means that there is a problem with the Mass Air Flow (MAF) sensor or circuit. The PCM detects that the actual MAF sensor frequency signal is not within a predetermined range of the calculated MAF value for more than 4.0 seconds.  I would try cleaning out your MAF sensor with some carb cleaner and reseting the check engine light to see if it comes back on.  If it does, get back on here and let us know and we will walk you through some other things you can try.  Cleaning it out will be the easiest/cheapest thing for you to try right now.  Good luck.  Thanks for an honest rating and for using FixYa.   

May 22, 2009 | 2003 Chevrolet Suburban 1500

1 Answer

2003 Toyota Corolla 30 amp keep blowing


it sounds like when the cat was changed they have trapped a wire or just moved one over a bit and its rubbing think about what items this 30amp fuse is protecting are any of the items close to the exhaust or around that area, i dont see the aftermarket starter doing this after 2 years hope this is helpful regards JR

May 17, 2009 | 2003 Toyota Corolla

3 Answers

Check engine light on a 2001 Toyota Corolla


No need to replace the MAF. If it was bad, the check engine light would have come right back on as soon as you started the engine. The MAF not only measures the air going into the engine, but also measures the air temperature. Those 2 circuits are constantly sending info the the ECU. If either would fail, the ECU would light the check engine light. P0171 is a common code for incorrect readings (dirty) in the MAF. Cleaning it always helps, and cuts off the light. Your acceleration problem may be either a wrong Air-Fuel sensor (the one before the cat), or an "aftermarket" AF sensor. "Aftermarket" AF sensors have been shown to not work properly in Toyota vehicles. Hope this helps

Sep 27, 2008 | 2001 Toyota Corolla

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