Toyota Avanza 1.3j 2010 when driving high speed suddenly engine loss power and noisy if accelerate,but the engine still running ,speedometer going up..? what is the exact problem on this?

Ok ....there are two temperature sensors, one for the gage or light and other for the ECU, make sure you change the right one and try again.

toyota avanza
if the engine light is on there are fault codes to be read
these need specific diagnostic readers

when was it last serviced
going up a hill
would suspect fuel delivery issue then spark problem

check engine tappets, check the fuel pipes.

run the vehicle fault codes to determine a faulty sensor--possible accelerator position sensor.

I also have this problem with the same model. the engine sounds grungy every time I accelerate it feels like you're riding on a 1.0 liter engine,, did you fixed it?

May be vehicle speed sensor. Any codes?

You need the dealer to diagnose this.

This is under warranty don't work on it you can void the powertrain warranty

check your wheel speed sensors. and vehicle speed sensor on the transmission

drive 4 uses it to sense slip in the front/rear wheels.

check engine light on because it needs to know vehicle speed to shift properly.

no speedometer because it turns the voltage into a signal to the gauge

2002 isuzu rodeo 2.2 loss of power will go no more then 10 miles per hour