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Ran test un car results say mas air sensor is bad.

Ran test on car results say mas air sensor is bad. Where is it located

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It would be located between the air cleaner and tube going to intake

Posted on Jul 16, 2010


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My 2005 Aveo will not idle. Any ideas?

Un-do the hose clamp on the air box and the one on the throttle body, carefully disconnect the MAS sensor plug at the top of the hose... remove the hose and inspect it for cracking or breaks. Very common... This condition causes un-metered air to enter the system. The new part is about $80.00 on ebay. It will likely come with a new MAS sensor. JUST BE SURE AND DOUBLE CHECK THE AIR FLOW DIRECTION arrow on the sensor. The last one I did, the part was good but the sensor was installed backward. Took me a while to find that problem.

May 18, 2017 | 2005 Chevrolet Aveo

1 Answer

I have a 1996 dodge stratus that was stalling when you would come to a stop, I was getting a IAT sensor code, I unplugged some of the connectors under the hood to check for corrosion, everything looke

If the mass air sensor (MAS) is malfunctioning, it could be telling the control unit that a lot more air is entering the engine than the true amount of air. So more gas is distributed to the engine to match the mass air reading. When you unplug the PVC from the hose, you are introducing more air and are one step closer to equaling what the possibly malfunctioning MAS is telling the control unit. Connect all hoses and sensors. Disconnect the MAS. It will be that sensor, just after the air filter. This will put the MAS readings into fail-safe (general parameters) . If this MAS is reading incorrectly, the engine should be smooth when the MAS is unplugged. If this fixes your issue, there is special cleaner to spray and clean the sensor. It may not be bad. It may just have a coating on it (inside the air intake tube). I've seen a feather on the mass air sensor shut down an engine completely

Nov 06, 2014 | 1996 Dodge Stratus

1 Answer

Whats a maf sensor

mas air flow sensor. its located in the fresh air duct work near the air filter

Sep 16, 2014 | Cars & Trucks

1 Answer

My 1997 Ford Taurus stalls when I accelerate. It only happens about 5 to 10 minutes into my drive. It starts up fine. If I am driving and the car stalls on acceleration, I can turn the car off and back...

Replace first, the fuel filter if this has not already been done. You may have a plugged filter, and these are very inexpensive. If this does not resolve the issue, locate the MAS (mass airflow sensor) located between the throttle body and the air filter housing. Start the car and let it idle normally; with a screwdriver handle or other such small tool, tap the mass airflow sensor (small black unit; will have a wiring harness hooked to the side of it); if the car dies, stalls, hesitates; first purchase MAS cleaner at the local auto parts dealer - specifically ask for Mass Airlflow Sensor Cleaner. It will should cost between 7-12 bucks - but you wont need the whole can - however, when using it: (if the car does not die, stall or hesitate and the idle stays the same, than the sensor is not bad) If it does however:
1. Remove the MAS (disconnect wiring harness) you may need to pull the top end of the air filter housing off.
2. Spray inside the sensor generously from both ends ensuring it's entirety is sprayed. Let stand for 15 minutes to airdry.
3. Re-install the sensor and start car. If there is still no improvement and the car hesistates, 1. Ensure the air filter as well is in good repair, and that there is nothing causing any air flow restriction between the airfilter and the throttle body.
4. If the airfilter is good, and there are no restrictions to air flow, consider replacing the MAS, however if you can get the car to the auto parts dealer, or to a technician (who may charge; auto parts dealers usually don't) have them run a diagnostics test on the car.
5. At this point, if cleaning the sensor has made no improvement, and the car stays idling, does not hesitate when tapping the sensor, the air filter is good, the fuel filter is good - then the next step is to replace the fuel pump.
Please let me know if you need further assistance.

Sep 26, 2011 | 1997 Ford Taurus

1 Answer

Engine just shuts off and wont start

1.(check air filter to ensure it's installed correctly and not ripped, or torn or plugged; if it's in good condition and installed correctly, then) Purchase MAS cleaner (MAS = Mass Airflow Sensor) This is located on the air intake hose, between the front most part of the car (filter canister) and the intake.
2. Remove the MAS and spray generously inside the sensor. This cleaner is made specifically for this sensor, so it will not harm it. Let it air dry for about 15 to 20 minutes. Re-install the sensor, and start the car. If there is no difference, consider replacing the sensor.
NOTE: Before all else, if you can get someone to run a diagnostics test, this will bring up any codes for any problems the machine can detect, and will most likely detect this issue, as it is most likely computer (electrical) related.
Please let me know if you need further assistance.
Guru, Premium Expert, Phone Assistance, @

Jun 09, 2011 | 1992 Oldsmobile Cutlass Supreme

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Mi jetta 96 v4 gasta mucha gasolina,

okay si gasta mucha gasolina puede ser que tus sensores de oxigeno esten mal. o tu regulador de gasolina siendo que si la presion de gasolina es muy alta esto hara que los injetores se injecten mas gasolina de la necesaria. Hacerle los servicios a tiempo es otro factor importante para un consumo normal de gasolina. Cambio de aceites bujias, pcv valvula filtro de aire, tapa del distribuidor y rotor. acuerdate un motor en buenas condiciones necesita menos gasolina para mantenerse en movimiento un motor mal cuidado requerira de mas fuerza y para lograr fuerza requiere de mantener el pedal de gas mas a fondo con mas tiempo. Revisa tus llantas tambien. Llantas con falta de aire hace que el auto gaste mas gasolina porque aceleras mas para que el carro avanze.
No se te olvide calificar me por la ayuda que te he brindado.. gracias.

Mar 04, 2011 | 1996 Volkswagen Jetta

1 Answer

I have a honda accord 2003 model 2.3 16 valves engine the problem is that when the engine gets warm up after five or six kilometres the engine gets off while braking or shifting the gear

Does the engine shut off?

Try replacing the air an fuel filter - also tap on the MAS (mass airflow sensor) which is located between the air filter casing and the intake (throttlebody) - if the car dies, hesitates it may need to be replaced.

First, do the air and fuel filter. If this does not solve the problem, then purchase MAS cleaner. Pull the unit out and spray the inside generously with the cleaner. Re-install and drive. If the problem still exists, try replacing the MAS.

If not this, it could be either the crankshaft sensor, cam shaft sensor, harmonic balancer, O2 (oxygen) sensor(s), or the catalytic converter may be plugged.

Take the car first to an auto parts dealer (Napa, Baxters, etc) and have them run a diagnostics test to determine any codes that will let you know what components may be malfunctioning, not working, and need replaced.

Please let me know if you need further assistance.


Guru, Premium Expert @

Jun 22, 2010 | Cars & Trucks

2 Answers

Code reading

Hi. this code represents an issue within the mass air flow sensor. it is malfunctioning at this point. the mass air flow sensor Measures the volume and density of air entering the engine, so the electronic control module can determine how much fuel is needed to maintain the correct air to fuel mixture. There are two basic types: heated wire and heated film (grid); both work on the same principle.

A faulty MAF will cause driveability problems resulting from incorrect ignition timing and improper air/fuel ratios.

this device is located Under hood, center, upper engine area, mounted on rear of air intake duct

To replace a MAF sensor:
  • Locate the sensor.
  • Disconnect the negative battery cable.
  • Unplug the wiring harness and vacuum hose.
  • Unscrew the two screws holding the sensor in place.
  • Reverse the procedures to install a new sensor.
Please rate and god bless:)

Apr 28, 2009 | 1996 Chevrolet Impala SS

2 Answers

1999 SL1 running rough


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