Can't blip throttle?

[Battery Nonce]

I've just changed an injector in the engine as the idle was rough sounding and the injector failed light kept flashing.

That seems to have solved it now, the idle is much much smoother still not perfect

butttttt, I've realised that I can't blip the throttle when downshifting etc, it's like I have to hold it on there for a second before the car registers and delivers fuel. So this is making heel and toeing pointless as it just doesn't happen.

Any ideas on what it could be?

Thanks

 

[TheEvilGiraffe]

Legs too short ?

 

[Battery Nonce]

:coldsweat:

 

[da rok]

if you could blip the throttle fine before you changed the injector and you only changed the injector then that's probably where the problem is, computer might need to re calibrate as well. if you havnt already, take it for a easy cruise to allow the computer to adjust...