Fuel pressure test or vacuum leak test?
 

Hi all. So I have I missfiring 986 under acceleration and it does try to cut out when I come to a standstill.

I’ve replaced the MIF, the air filter, engine oil and filter change, plugs and I’ve cleaned the inlet manifold, I’ve had a look for basic leaks and found nothing, my Durametric tool shows no engine faults.

Is the next best thing to do - to check the fuel pressure with a fuel pressure gauge or to do a vacuum leak test with a smoke thingy? Sorry I don’t know it’s name 😁

It will be easier for others to help you and possibly for you too get better results if you keep your questions on your current issue to one thread.
Looks to me like you have 3-4 different threads going on the same issue.
Makes it very very difficult to follow your issue and or help.