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.

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?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Acceleration hesitation while climbing up sometime check engine light appear, high fuel consumption.

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: Brakes squeaking when stopping on only the front left side

Hello, thanks for writing in about your Chevrolet Aveo. Your brakes can squeal and be okay but to be on the safe side you should have the brakes inspected by a certified technician, like one from YourMechanic, to make sure....

Q: Cabin filling with gravel dust

Hi there. Assuming your door seals are good, the only thing that I can imagine is going on is one of two things. Either your AC is set to blowing air from the outside of the vehicle or your interior...

Q: Q: My car jerks when I accelerate

This may be a sign of a dirty or failing mass air flow sensor. The mass air flow sensor reads the air intake as it is mixed with fuel prior to being injected into the motor. When this fails, this...

Related articles

How Long Does a Heater Control Valve Last?
Keeping the right amount of coolant in a car is essential in keeping the engine at the right temperature. Failing to have the right amount of coolant or even bad elements...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.