Question about 1998 BMW 7 Series

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Bmw check light stays on. had auto zone read it said mass air flow senc. needs replaced put new one on stiill eng. check light comes on.

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Yes the light will still be on till you clear codes then see if it still comes on after a day or so -

Posted on Mar 21, 2011


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Last week my check engine light came on Auto zone said it was mass air flow sensor the next day my car would not stay running like it was running out of gas

So you replaced the sensor and now the light is back on, right? Have you checked the code again to make sure it's still the MAF sensor code? If so, you've got a connector or wiring harness issue.

Mar 14, 2018 | Nissan Cars & Trucks

3 Answers

2003 Nissan Altima 2.5L Service Engine Soon Light is on, Auto Zone says codes are for MAF and O2 Sensors. Car hard to start after driving a while but when starts appears to run smooth. Auto Zone thi

ok lets start with the codes they say your getting. P??? which 1's and how many. there are few o2 sensors, are they next to the Exhaust next to the converter? MASS AIR FLOW -MAF use this, for now i am guessing, until i see the correct codes your are getting. this could be the 1 you may have below, please read it........
  • P0103
    Mass Air Flow Sensor Circuit High Input
  • Possible causes
  • Faulty mass air flow sensor
    - Intake air leaks
    - Dirty mass air flow sensor
    - Dirty mass air filter
    - Mass air flow sensor harness is open or shorted
    - Mass air flow sensor circuit poor electrical connection
  • 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. If the code comes back, it may be necessary to replaced the mass air flow sensor.
  • possible symptoms Engine Light ON (or Service Engine Soon Warning Light)
    - Engine stall
    - Engine running rough
    - Excessive fuel consumption
    - Excessive smoke
  • the code is generated when An excessively high voltage from the sensor is sent to Engine Control Module (ECM).
2003 NISSAN Altima Sedan OBDII Codes List

Oct 22, 2014 | 2003 Nissan Altima

1 Answer

My 2002 xlt ranger 3.0 v6 flex fuel eng. 115k mi. I start out and it runs good I can run it up to 5000 rpm and it runs good after it warms up to normal temp. if I run it up to 3000 rpm it will just shut...

Could be a mass air flow sensor or the auto choke is staying on,these sorts of problems need the dealer software to drive and diagnose the fault at the same time with nerdy boy with laptop sitting in the passenger seat .Sorry i cannot give a nice fixya easy answer on this one

Dec 31, 2012 | 2002 Ford Ranger

1 Answer

Volvo V70 code P0102

that means you have a mass air flow sensor problem located on air intake first try cleaning it be real gentle when cleaning ok thhey sell electrical spray cleaner at auto parts use that then clear the code auto zone can do that for free drive car if it comes back then replace the mass air flow sensor ok let me know

Nov 20, 2012 | 1998 Volvo V70

1 Answer


Replace the mass air flow sensor.

Jul 05, 2010 | 2001 Ford Windstar

1 Answer

Engine running rought at idle won't stay running runs great at higher r.p.m. check eng. light comes on once engine is warmed up.

Take it to Advance Auto or Autozone and they'll read the check engine code. That will give you an idea but it's not perfect. There are many faults that trip the check engine light and I suspect there will be several. Coils or Mass Air Flow sensor would be at the top of my list of suspects. A bS Mass Air Flow sensor will give other codes such as lean or rich or even manifold leak, because the result is the fuel system doesn't provide proper ratio of fuel to air.

Mar 14, 2010 | 1995 Mazda 626

1 Answer

Took car to auto zone after check engine light came on and car stalls when cold. Is there anything cheaper then buying a new nass airflow sensor I can try first?

They do make a mass air flow sensor spray cleaner...and it does say MASS Air Flow Sensor Cleaner on the spray can....this would be your cheapest route first. Auto Zone and all other stores sell this product.

Mar 06, 2010 | Hyundai Sonata Cars & Trucks

2 Answers

CODE PO102 after Mass Air Flow Sensor replaced

Most faultcodes don't disappear automaticly, the have to be 'reset' manually after repairing. It sounds like the code didn't get erased after replacing the MAF. You could try to disconnect the battery for 10 minutes (disconnect and reconnect the negative (-) pole), which should erase the code.

Whenever the engine light still comes back on after that, there probably still is some (other) problem ...

Aug 24, 2009 | 2002 Pontiac Grand Prix

1 Answer

Mass airflow filter

Take it back to autozone and have them clear the codes. that should make the light go off

Aug 19, 2008 | 2003 Buick Century

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