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Trying to find a replacement part for the Mass Air Flow Sensor on a Suzuki Grand Vitara 1999. Online I've only been able to find one for a Suzuki Vitara 1999. Is this the same piece? It looks exactly the same to me....
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- 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.
As a first course of action, please do check the vacuum hoses. If there are disconnected or worn out vacuum hoses the car's idle becomes unusual. One good reason why it goes up a little when braking.
Another cause will be the MAF (mass air flow) sensor. If the MAF sensor is fault, the car's idle becomes erratic. Your MAF sensor may be near it's break point so be ready for a possible replacement soon.
Hope this helps and thank you for using FixYa! Have a good one!
If the check engine light is on then there's definitely a problem. The engine rpm is erratic right? This can be caused by a faulty MAF (mass air flow) sensor. If the MAF sensor is faulty the idle will surely be erratic and may cause stalling.
You will need to have it replaced to make the vehicle back to it's normal operation again.
Hope this helps and thank you for using FixYa! Have a good one!
There are a lot of possiblities. Mass air flow sensor, o2 sensor. So this was hooked up to an OBD2 scanner and no codes came up? A good mechanic should be able to diagnose this problem in person. It is very hard to do over the internet but I will do my best to give you the most probable culprits. If you have a moment to accept and rate my solution on the original problem it would be greatly appreciated. Thanks, Lee
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