Replaced the MAF
The problem persists.
I decided to check the Fuel pressure and foun that it is only at 200kPa (29 PSI),
this is way lower than the specs. In the maintainance manual it stated that it shouold be at 300kPa.
There is a test procedure, jump pin 1 and 3 on the fuel pump relay(103) and see if the presure increase, if not pinch the return hose and see if the pressure rises( carefull not to let it rise above 600kPa.
if it does not rise the fuel pump is faulty.
mine dit not rise, stoot solid at 200kPa.
Over the weekend have found the problem - hopefully the last.
I removed the fuel pump, just to have a look- to see if the filtes is blocked.
and there was the problem -not the filter. but the ruber hose from the pump to the metal tube was very lose.
I am sure that is why i was loosing presure, i pushed the rubber on and tightned the clamp.
Now there is no more stuttering or hesitation
