[otto in norway]

I have been using the TEC3r for 7 years now, and I am quite happy with the product.

It was initially used on a 3.2 carrera engine, now it is used on the same engine, but with PMO and enlarged to 3.4 w/twinspark. The TEC3r is running sequential injectors and dual waste spark.

Since I installed the EFI unit on the 3.4 in 2013, I have got it running pretty good. It pulled a dyno run with 280Hp at the crank. (Happy with that)
The driveability is pretty good too. I have been tinkering on the mapping on/off for the time since 2013 and feel that I have got a good grasp on the workings of the unit.

The problem I'm having is this: It is very driveable 50% of the times that I start it up.
I can start it up, and immidiately feel if it is going to be "a good one" or "a bad one". If it is good, the pedal action is immidiate, revving the engine quite happily. If it is a bad one, the engine hesitates when stepping rapidly on the accellerator pedal. (running lean when rapidly opening throttle)

To me it seems that the accelleration enrichments are turned off 50% of the times I start her up. How could that be?

Any other ideas as to what is going on here?

Thatns,
Otto