@psyber: did you receive my PM?

Hi, yea I bought it in Gross Gerau, but i live in Wuppertal. What do you do in Gross Gerau ... ?

Need Help with hooking up the spartan2 controller to the oem Wiring harness/ MSPNP ?
I downloaded the ducumentation from 14point7 but it does not tell me nothin´. Maybe i am too stupid, so please help!
output of spartan2 = brown, blue,white,green,red,black wires
do i need to solder those wires directly to the Megasquirt or to the oem lambda-plug?
hope my english is not too bad.

Just run the wideband signal wire to the ecu. Ground the negative terminal to the chassis, ground the signal negative wire where the ecu is grounded (black-green wires, at least for my NA), grab 12v from the harness (white-red wire)

smallband signal remains unused

Should i wire the wideband signal to the oem wiringharness signal?

I did. I cut the wire where it came out of the stock O2 sensor so I didn't have to cut the harness.

Is that an eBay turbo kit or where did you get it from?

It is a NA and NB kit-combination from SPS-Motorsport.

oh, I'm still waiting for my EFR kit from Jan