Skip the auto shop - Our mechanics make house calls

Q: Acceleration hesitation while climbing up sometime check engine light appear, high fuel consumption.

asked by on

I am using toyota spacio 1.6 ltr engine 1997 model. I have problem with check engine light appear during climbing hill whenever i press hardly the accelerator to increase the speed. I did diagnosis of car and found knock sensor alarm. Replace with second hand knock sensor. It work for some day but problem came again. Due to this problem fuel consumption is high. Change twice knock sensor with second hand but problem is same. I would like to know , is this because of knock sensor or something else?

My car has 5 miles.
My car has an automatic transmission.

A: I would recommend checking the mass air flo...

I would recommend checking the mass air flow sensor as this is a commonly known part that can cause this kind of loss of power. This regulates the air intake into the fuel injection and ensures a proper air/fuel mixture.

As you may know, when going up hill and altitude changes, so does air density which requires a change in the air/fuel mixture. When this sensor is faulty and this does not happen, you will likely experience this kind of loss in power.

I would recommend having an expert from Your Mechanic come to your home to enter image title here.

Was this answer helpful?

Need advice from certified mechanic? Get help now!

Over 1000 mechanics are ready to answer your question.
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Still overheating after replacing thermostat and radiator.

Hello, thanks for writing in. I suggest having the engine diagnosed by a mechanic to see if the cooling fans are working like they should, and if they have overheated, then see if engine head gasket is blown. I also...

Q: How do I manually adjust the temperature?

The temperature is controlled by the temperature control dial. To manually adjust the temperature, rotate the dial towards the temperature that you would like (red is hot, and blue is cold).

Q: Engine skipping.

The skipping you are feeling is the engine misfiring. Your engine coils, plugs and plug boots may need replaced. The valve covers may also be leaking oil into the spark plug holes and the cause of the miss fire. I...

Related articles

How Do Power Car Windows Increase Passenger Safety?
Power windows are responsible for approximately 2,000 emergency room visits every year. When a power window closes, it exerts enough force to bruise or break bones, crush fingers, or restrict an airway. Though...
P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the P0052 code means This code is seen when the Engine Control Module (ECM) tries to control the...
What are the Car Pool Rules in Hawaii?
Hawaii is widely regarded as a land of vacation and relaxation, and as such, its scenic roads and routes are far better known than the state’s freeways. But, as with all...