Hello all, I have a 1.4 8v '56 plate 5 door dynamic, I have an issue where by under heavy acceleration, away from a stand still mainly, going from full throttle, to change gear and full throttle again, there is a lag of about 1 second before it recognises full throttle again. Is this just normal for a fly by wire throttle or is it an issue with my car? Thanks all

Hi I have exactly the same problem usually going from 2nd to 3rd, let me know if you find a solution

steds20 mine does it to but only slightly in 1st setting of quickly at a roundabout ill feel it but its caused me no problems whatsoever in the time ive had it almost to the point i dont actually notice it so i think its just a normal thing.

Mine notices the first full throttle, ie in first, but if i do a really quick change to second and mash the throttle again, it doesnt respond quickly... If i am slow with the application of throttle into the next gear its all right and does as its told. Part of me wants nothing to be wrong (cheaper ) but i cant believe fiat sold cars that were so clearly flawed in their operation...

Clean the throttle body and do a throttle relearn


https://www.fiatforum.com/grande-punto/262685-1-2-wont-idle.html?p=2697299

Was going to say is it the flange possibly sticking

I put a ported and polished throttle body on, and its the same... I think it Might just be how fly by wire throttles are :s

Andy Monty said:

Clean the throttle body and do a throttle relearn


https://www.fiatforum.com/grande-punto/262685-1-2-wont-idle.html?p=2697299

Click to expand...

LOL at the first few posts in this thread (the guide, not THIS thread)

OP have you tried this? And other dude who cleaned the TB, did you try this?

Mine has no lag at all.

EDIT: Also regarding fast gear changes, the gearbox is terrible and it isn't a performance car, what do you expect? If you change gear quick without applying relevant throttle then of course the revs will drop and it will take a while to pick up.

Just to clarify its when the next gear has already engaged that the lag occurs, so I doubt its gearbox related. And only when going from high rpm, ie 6300 then changing and immediately going to full throttle again.. if I apply the throttle gently it doesnt happen... which means it isnt a massive problem for driving quickly.. but could indicate an underlying problem.

I get a lurch, like 4th > 3000rpm change to 5th, as soon as clutch engages, lurch, etc

it isn't a smooth change but that's more the gear box than anything.