My toyota echo has the problem with loss of power with trying to accelerate. The mass airflow sensor has been talked about being a solution to this. Where is it located?

Go to an auto parts store and ask them to read the pending fault codes. I vote Mass Airflow sensor.

has a mass air flow sensor

check engine light should be on if the maf is faulty

could be other EFI sensors

look for this part in the engine bay

What year ? Throttle position sensors and Mass Air flow sensors could cause this problem.

Either an electrical problem (spark plugs, bad cables or ignition box) or a sensor problem, especially the one associated with the throttle setting (I forget the name; but there's only about 7 engine sensors, one of those, mass airflow or throttle).

LOSS OF ACCELERATION

It can be fuel pressure issue or it's the problem with accelerator pedal or its clogged filters causing there.

There are many other possibilities. I suggest you to go through the list of help links mentioned below, these will help you to confirm where the actual fault lies: -------

Jerks and Hesitates During Acceleration?

http://technoanswers.blogspot.in/2012/07/2004-dodge-town-country-jerks-and.html

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Loss of acceleration?

http://technoanswers.blogspot.in/2012/02/loss-of-acceleration.html

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Headlights flickering and car hesitates to start?

http://howtobyme.blogspot.in/2012/02/headlights-flickering-and-car-hesitates.html

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How exactly the Vehicles Accelerator Cable works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-cable.html

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How exactly Vehicles Accelerator Pump Diaphragm Works?

http://repairhelpcenter.blogspot.com/2011/11/how-exactly-vehicles-accelerator-pump.html

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2000 Toyota Avalon: Engine Lean Codes and Knock Sound on Acceleration?

http://whatisbyme.blogspot.in/2012/05/2000-toyota-avalon-engine-lean-codes.html

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2004 Toyota Avensis: Acceleration And Deceleration makes noise on Front End?

http://whatisbyme.blogspot.in/2012/05/2004-toyota-avensis-acceleration-and.html

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Wheel hop under hard acceleration?

http://technoanswers.blogspot.in/2012/04/wheel-hop-under-hard-acceleration.html

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2009 Chevy impala accelerator pedal sensor?

http://technoanswers.blogspot.in/2012/02/2009-chevy-impala-accelerator-pedal.html

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Nissan Pathfinder stalls and bucks on Acceleration?

http://technoanswers.blogspot.in/2012/02/nissan-pathfinder-stalls-and-bucks-on.html

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Acceleration lag problem?

http://repairhelpcenter.blogspot.com/2012/01/acceleration-lag-problem.html

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These details will help.

Thanks.

No. The metal flap in the mass aiflow sensor is not connected to the throttle control. The air moving through the mass airflow sensor moves the flap. The flap works a variable resistor inside the mass airflow sensor. The more (and faster) the air is that moves through the sensor, the farther the flap will move...that is how it measures how much air is entering the engine....that is what a mass airflow sensor does.

A bad mass airflow sensor can cause all kinds of fuel control problems that can range anywhere from a hesitation on acceleration to a complete engine no-start condition.

Try cleaning the MAF sensor (mass airflow sensor) with some spray brake parts cleaner, let air dry and reinstall. The sensor is located in the airflow duct system leading into the carburetion area and has a wire connection hooked to it. My cousin had this problem on his 2000 4 runner but had to end up replacing his, about $80. Will spin the rear tires now.

Check the timing and compression of the engine. It sounds like you either have a blown head gasket or a the timing jumped.

throttle position sensor or called tps

Hi there!

There may be a problem with the Catylist, O2 lambda sensor, or mass airflow sensor.

You would be advised to have these units tested. A simple metod is just to take it to a tune-up shop, as they will be able to analyize exhaust gasses, and test the required outputs.

Hope this helps you.