Question about 2001 BMW 5 Series

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Air mass sensor

I have replaced the air mass sensor in my 2001 525i. Once I reconnect it to the computer, the car will not start! Is there a reset necessary to the computer to recognize the new sensor? Right now I am driving the car without the air mass sensor connected and it is fine but it sends 8 new error messages all related to the fact it is not connected.

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Try this it may work for you. disconnect the battery , plug in the sensor and reconnect the battery
also make sure the sensor is installed with the air flow going the rite way

Posted on Dec 10, 2008

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Posted on Jan 02, 2017

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2008 Chevy Kodiak c4500 duramax desiel code reader (Innova 3100 Can OBD2) shows P0102, what does it mean


P0102 Chevrolet - Mass or Volume Air Flow Circuit Low Input

Read more: http://engine-codes.com/p0102_chevrolet.html#ixzz38p5k1ZD8

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.


Read more: http://engine-codes.com/p0102_chevrolet.html#ixzz38p5tpWZk

Jul 28, 2014 | Cars & Trucks

1 Answer

Air Mass Meter


first question ---did you get a brand new MAF sensor or one that someone had lying around
what was the code that prompted the replacement of the MAF sensor as there can be up to 7 causes for the code

Mar 29, 2017 | Ford Focus Cars & Trucks

1 Answer

Spare part 12(po100)


P0100 NISSAN - Mass Air Flow Sensor Circuit Range/Performance Error

Possible causes- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks
- Faulty mass air flow sensor
Tech notes 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.

Sep 25, 2012 | 1997 Nissan Pickup

1 Answer

Check engine lght on and 2 codes p0103 and p0112


P0103 HYUNDAI - Mass or Volume Air Flow Circuit High InputPossible causes- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks
- Faulty mass air flow sensor
Tech notesBefore 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.
P0112 HYUNDAI - Intake Air Temperature Sensor 1 Circuit Low InputPossible causes- Dirty air filter
- Intake air temperature (IAT) sensor harness is open or shorted
- Intake air temperature (IAT) sensor electrical circuit poor connection
- Faulty intake air temperature sensor
When is the code detected?An excessively low voltage from the sensor is sent to ECM.

Jun 08, 2012 | 2001 Hyundai Accent

1 Answer

P0101


P0101: MAF or VAF A Circuit Range/Perf

- Dirty mass air flow sensor
- Dirty mass air filter
- Mass air flow sensor harness is open or shorted
- Mass air flow sensor electrical circuit poor connection
- Intake air leaks
- Faulty mass air flow sensor

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.

Feb 09, 2012 | 1999 Pontiac Grand Prix

1 Answer

Car does not run well with mass air flow connected , once electrical connecter remove it runs great, tryed a new mass sensor but still runs poorly . what should i look for ?


You installed a new Mass Airflow sensor and still runs poorly, then it sounds like the computer is messed up (ECU). First try to unhook the negative battery cable for a couple minutes, and plug the new airflow sensor in, reconnect battery terminal and let it run for a couple minutes with the part in. It can reset the ECU.

Dec 06, 2011 | 1993 Oldsmobile Cutlass Ciera

2 Answers

The check engine light comes on and it dies on occasion. It is intermittent. Had it scanned and was told the only fault was mass air flow sensor. Cleaned the mass air flow sensor, replaced fuel filter and...


Anytime you make a change to any part of the emissions system, its best to disconnect the
battery for a few minutes. If you don't, the computer retains the fault code and it will usually keep
coming back. When all power is lost to the computer, it will do a complete scan when reconnected
and engine started. Try disconnecting the battery for a few minutes then reconnect and see what happens.

Mar 05, 2011 | 1992 Buick Century

1 Answer

99 ML430 143k miles, had codes for misfires on cyl 4 and 5. Replaced ignition coils to clear codes, now hard to start from cold. Had p0100 code MAP sensor, found cracked/open vacuum hose, replaced hose....


P0100 OBD-II Trouble Code

Technical Description

Mass Air Flow (MAF) Circuit Malfunction

Basically this means that there's a problem with the Mass Air Flow (MAF) sensor or circuit.

You will likely not notice any serious driving problems, but there may be symptoms like a general decrease in power or sluggishness.
Causes

A code P0100 may mean one or more of the following:

* The MAF may be disconnected, or a wiring connection may be bad.
* The MAF sensor may be faulty.

Possible Solutions

Use an OBD II Reader (or go tou your local parts store and they will for free) and reset the code and see if it comes back.
Then start with the cheapest, easiest repair procedures:

* Check the Mass Air Flow Sensor wiring/harness is connected properly and that there are no broken / frayed wires.
* Unplug and reconnect the MAF wiring harness a few times to clear the contacts.
* Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information).
* Replace the MAF sensor.

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Sep 17, 2010 | 1999 Mercedes-Benz M-Class

1 Answer

2003 Sprinter 3500 2.7. Mass air code still after


P0100 OBD-II Trouble Code

Technical Description

Mass Air Flow (MAF) Circuit Malfunction

Basically this means that there's a problem with the Mass Air Flow (MAF) sensor or circuit.

You will likely not notice any serious driving problems, but there may be symptoms like a general decrease in power or sluggishness.
Causes

A code P0100 may mean one or more of the following:

* The MAF may be disconnected, or a wiring connection may be bad.
* The MAF sensor may be faulty.

Possible Solutions

Use an OBD II Reader (or go tou your local parts store and they will for free) and reset the code and see if it comes back.
Then start with the cheapest, easiest repair procedures:

* Check the Mass Air Flow Sensor wiring/harness is connected properly and that there are no broken / frayed wires.
* Unplug and reconnect the MAF wiring harness a few times to clear the contacts.
* Check the voltage of the MAF sensor (refer to a repair manual for vehicle specific information).
* Replace the MAF sensor.

Thanks for using FixYa - a 4 THUMBS rating is appreciated for answering your FREE question.
!!!!

Oct 02, 2009 | 2003 Dodge Sprinter

1 Answer

Check engine & traction control lights on


It might be the water temperature sensor for the brain not reading the right temperature, causes wrong parametres in the warming up periode, and then the diagnostic lamp will show.

Dec 19, 2008 | 2001 Saab 9-3

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