Hi
I have an Audi urS4 1992 with the AAN engine.
My goal is for now:
- use all original sensors
- replace the MAF with a MAP
- replace the original Lambda with a WideBand
- make my own electrical loom/harness for the engine, using VAG OEM connectors and use the standard
Econoseal connectors on the Vems.
- Make the engine run nice and good.
- make it work with COPs from 2005-2007 VAGs
- is that power-input ? (not logiclevel) ?
Next goal:
- switch exhaust header
- another turbo
- larger injectors
- another WasteGate
- switchable fuel maps
What I know:
- I will buy the pre assembled vems.
- I only need 5 logic outputs for the ignition.
- The extra flyback 30v diode seems like a good choice
- I will buy a wideband lambda
- I will buy a EGT sensor
- I want the LED (4x20?)
- I want a special lambda display
- EGT and knock sensors(would like to use the stock knock sensors)
- onboard MAP sensor 400 kpa
- I will buy some econoseal connectors 18+36
What I dont know:
Q: What version of the hardware do I need, what to order ?
A: asembled controller, either econoseal or motronic55 connector.
Q: Shall I order 2+6 version, what can I use the 2 high current outputs for ?
A: Lots of things. Relay, solenoid, NOS, ...
Q: How about firmware and sensors, do I need to compile something myself ?
A: no need to compile anything. See VemsTune
Q: Primary trigger ? Is that VR on Audi AAN ?
A: VR
Q: Secondary trigger, would be "audi trigger", yes ?
A: "audi trigger" , yes
Q: I suppose I should choose PS2 connector as well
A: useful eg. for wheel-speed input (but we can connect PS2 clock signal to an unused pin as well