BMW M30B35
Note: if ECU also used for BMW M106 engine, separate page is needed for that, to avoid confusion.
VEMS ECU for a
- bmw m106 engine
- also a bmw m30b35 engine with a kkk27 turbocharger.
- [some m30b35 related pages]
- [M30B34 search] (different engine, but might be useful), quite similar mechanically
Trigger negotiation, please measure and update here! Any trigger modification should be planned, and documented to avoid unnecessary project delays
"If it does not fit, please let me know. "
Measure for each (trigger) sensor: if you find 2 pins that measure same resistance in both directions (typically between 300..1400 Ohm), that is VR sensor. Otherwise HALL (or optical, but HALL input needed for that too, "eg.: very high frequency low capacitance value sectrig HALL is used for nissan-trigger).
The HALL, auditrigger trigger as ordered is almost certainly not good, virtually nonexistant factory combination: HALL, VR
- HALL, auditrigger is not really needed, but it can be used as HALL , VR
- HALL input could be used with VR-HALL adapter (or modified primary trigger with 1GT101 HALL sensor as in MembersPage/MattiasSandgren/BmwTwinTurbo )
- but best to order VR,VR if the engine has VR sensors.
ECU VEMS V3
- primary_trigger: HALL
- secondary_trigger: OBSOLETE auditrigger w/out camHALL inverter
- ignition driver: 8
- Flyback: HighZ-only 30V flyback
- MAP connection: 300kPa (6/4mm pneumatic)
- LCD connection: yes
- Knock input channels: 2
- EGT input: 2
primary trigger: Stock 60-2 crank trigger wheel, but most likely VR (not HALL).
Bmw m106 (is BMW M30B34MAE) engine and m30b35 engine are quite similar mechanically. I was unable to find any trigger information from the M106 it was used only in very old (1982-1986 E23 745i ) 7-Series body;
For the m30b35 however (delivered in many bodies but most notably the 1987-1992 E34 535.
Page #97 seems to suggest this engine needs a primary = VR / secondary = VR ecu.
Other than trigger side, there are no uncertainties in his order (so good).
I would ask him to confirm if the trigger on his engine is indeed the OEM VR/VR as wiring diagram suggests or if he has retrofitted some HALL/HALL other option (in that case HALL/HALL might be fine).