Technical Loses power around 3000 revs

[FRUSTRATED FIAT DRIVER]

Long time since i was on the forum glad to be back lol.Fiat punto evo 1.2 8v 2011 loses power at about 3000 revs.plugs changed ,coil pack change crank sensor changed forward lambda sensor changed..had timing belt done recently .checked timing again using setting tools.. just give the smallest jolt then power drops right off.no eml . No codes very frustrating. Switch off and on again it clears until i get to the 3000 revs again any advice surely I can't be the only one ever to experience this one. Could it be the variable timing solenoid that was my next target.

 

[varesecrazy]

Have you changed the main earth cable..?

Battery to chassis to engine..


Pretty unusual symptoms..
It did it before cambelt change..?

 

[FRUSTRATED FIAT DRIVER]

Last night I decided to disconnect the variator solenoid .eml light came on but car drove OK so suspect the solenoid .I'm going to try and check it later.