Flywheel Differences

[Reebuck1]

I do not believe the 98 or 99 five speed transmission will allow a Boxster S DMFW
to fit or run properly in the smaller transmission housing. I AM NOT 100% CERTAIN THOUGH. The reason I say this is when I installed my 996 3.4 motor in my 98 Boxster I was unable to get the DMFW from the 996 to fit in my five speed
housing and I had to go to a Boxster S six speed to get everything to work. I do think it might fit in a 987 five speed housing.

[Duezzer]

The shop I took it to said their diagnosis is that the new flywheel I installed has an issue and that is why the readings are not correct from the Crank Position Sensor - They wanted another 7 hrs to pull it apart and inspect. I am having a tough time with their diagnosis so decided to bring the car home and do the inspection myself. I understand how they got there. They were recieving week reading from the sensor and when they modified it so it sat closer to the teeth they got a better signal, car started idling but timing is out of whack and was not drive-able.

There is a new (possibly damaged, not made correctly or incorrect) DMFW in the car.