Bmw m3 s54b32 install guidelines:
Use properly sized fuses everywhere.
- ETC motor: max 15A
- ign: 4A (might change to 5A after all tuned)
- inj: 3A
Wiring up
- Trigger:
- connect primary trigger to crank vr sensor
- connect secondary trigger to exhaust cam hall sensor
- connect third trigger to intake cam hall sensor
- Sensors
- wire up clt
- wire up iat
- wire up ETC tps on end of ITBS on engine
- wire up ETC tps2 inside ETC actuator
- wire up ETC pedal pps1
- wire up ETC pedal pps2
- wire up wbo2 1 (and 2 if used)
- Output guidelines:
- use separate ignition outputs for all coils
- use separate injector outputs for all injectors
- use injector outputs with external Schottky diode flyback for Bosch three wire IAC valve (when used)
- Fuses
- ETC supply should be suitable fused 15a
- Use suitable fuses for all other outputs (output groups INJ/IGN/IAC/WBO2)
Testing
- calibrate curves for clt/iat
- calibrate tps/pps1
- set safety curves tps2/pps2
- make triggerlog in VemsTune during cranking (crank for 5 seconds or more). When everything is connected properly (trigger wise) triggerlog should look like this:
-
- when anything looks different than this report before proceed.
Setup / Tuning
- Should be the same as any other engine with variable cams on both axis and high compression. Time consuming.