I have Honda fit 2011 there is acceleration problem Computer checking of car is excellent even then it's pick (Acceleration ) when i stop car on slop and then want to move the car but car won't move I press full acceleration padal but car won't move or some time move very slowly upward and other issue is fuel economy is not good

 

Are the brakes stuck?

 

No braks are fine

 

Is it an automatic or manual transmission? Does it seem like the engine is revving (clutch slipping or torque converter issue?