[mhurwitz]

Originally Posted by lateapex911

It's interesting that the problems are only happening...and getting worse....as it warms.
AND you have the pipe hooked up correctly to feed the MFI system the heated air.

TO me (I admit I haven't been in the MFI game for too long) that suggests the Pump isn't reacting to the temp change.

You say Supertec did the work, did they take the pump off and have it serviced (By who, Gus at Pacific Injection?).

If so, the proper warm up behavior is on them, and I'd assume they tested it before returning the car?

Is this a problem that has appeared over time? Or was it like this when Supertech returned the car?

People have days when things don't go quite right, so I'd see what the people who did the setting up the pump and install say.

Seems to me that the pump isn't adjusting to higher temps.

If your guy is at wits end, and the pump rebuilder can't help, I see you are in Newport Beach, and there are like so many German car shops in Costa Mesa that you could stand on 16th street and throw a stone and hit a shop with each throw LOL.

Used to be that MFI was black magic, but thanks to the internet, that's not the case.

(BTW, I used to live in NB, wouldn't take much to bring me back ...soooo much Porsche support, great weather, bla bla bla!)

Just to clarify, SuperTec did the throttle bodies only. I had the pump rebuilt by a guy that has done many MFI pumps for multiple shops in the area. I confirmed that he checks the pump thermostat on the bench. He has all the proper Bosch bench testing equipment.