Car sluggish after Flooring it on a hill start

[BTGyarisdriyvah]

Hi guys, New driver here.

Context: I was driving around greater london where i came to a traffic light on a steep overpass. I stopped, attempted a hill start, stalled (My clutch was almost burnt out anyway) and then went and floored it to ensure i had enough revs to get up the hill. I successfully floored it and was able to make the green light, however ever since then my car feels like it is struggling with power

Symptoms:

• Having to change gear earlier than before to get up to a higher speed
• Struggling with acceleration uphill
• Feels like less power in each gear
• Sluggish 

My Yaris dashboard has that little up arrow on the bottom left of the dial to tell me to upshift, and it tells me to upshift a lot sooner it feels. in terms of the sluggishness it takes really long to accelerate and get up to speed compared to before.

I thought I burnt out the clutch so I got a new one but the issue is still there. 

I have taken it to a mechanic and they cant really diagnose the issue by driving it. 

If anyone has any ideas what the problem is that would be super helpful.

 

Many thanks

[trashman1965]

Petrol or diesel and turbo or not?

I had very similar with a turbo diesel where a boost hose split.

[BTGyarisdriyvah]

Hiya mate,

Car is a Petrol, no turbo, 121,000 miles on it. 6 gears, 1.3 litre, 4 cylinders, and the spark plugs have also been changed.

If there's any other info that i can provide please let me know

 

Many thanks