Slight hesitation on part throttle

[Paz]

My 968 Sport has a slight hesitation between 1900-2200 RPM that's proving hard to diagnose.

I've just recently had a very comprehensive service (all fluids, belts etc) including a fuel filter and plugs/rotor/cap.
The garage has fitted a new set of 944 ignition leads just to see if this cures the fault and although it feels slightly better it still has a slight hesitation.

Can anyone shed any light on this . . ?

 

[paulf968]

My initial thought is that your garage has put the balance belt on incorrectly -- then I wondered whether the timing has been done OK as well (can be tricky on a 968) -- then I worried about the cambelt install !!

As you have just spent a load of money with a garage on the things I mention above -- get it round there immediately and tell them to fix it pronto!! I would be very suspicious of what they have done, our cars do not have hesitation at 2000 rpm.

PM me if you like to tell me who did the work -- I would guess it was not one of the known marque specialists

 

[Paz]

Just wanted to say thanks again Paul for taking the time to see the car for yourself and all your advice - top man []

 

[MHAK]

My first Porsche, a 1991 944 S2, had the same problem. A slight hesitation/flat spot between 2600-2800 revs. My excellent specialists recommended that i have the injectors cleaned to resolve the problem. I could not afford to do so at the time and so did not bother. May be worth a try. All the best.

 

[Paz]

Thanks for the tip MHAK.