Engine Harness Modification questions...

[Rotary Related]

Originally Posted by lonetlan

I have built my Streetported N/A engine(S4). I re-used the harness and have been on a stock ECU since the rebuild.

When I finally upgrade to Rtek, I will make a new harness. ECU and Main harness. I would like to keep it a stock harness with integrated safety features(more than just fuses).

What can I do to the engine harness to accomplish this goal?
How should I have the PDA wired to be "apart" of the system?
What could be the best option to reduce the added resistance?

Keep these in mind:
Still have emissions
Its a S4 N/A
Cold start blocked
E=IxR
The 7 experiences all the seasons
I'm not ready for a full stand-alone ECU
75% daily driver/25% track car

I kept the topic open so we can help others with a similar dilemma.

Thank you for viewing.

If you're still using the emissions equipment then you can't do anything to the factory harness. Everything needs to be there. I don't know anything about the PDA's cable so I can't help you on that. Could you better describe what your trying to do. I'm sure I could answer it better then. Do you have a pin out for the PDA cable? that could be helpful if your trying to power it off the car.