Placeholder until I figure out how this works a bit better.
Planning on converting my N/A BMW 87 325is to VEMS. Purchased the parts early December. Hope to have working system sometime mid Jan 2006.
Similar engines: maybe a page could be created for the 6cyl club ?
- MembersPage/GergelyLezsak
- MembersPage/BengtR
- MembersPage/MattiasSandgren
- MembersPage/FredrikEriksson
There is about 15 more "BMW" on MembersPage, but many I know are in early phase of the install.
12/28/2005
Finally received all the VEMS stuff I ordered:
1 x Wideband O2 sensor
1 x Hall Sensor - Unipolar
1 x Temperature sensor
1 x Wideband connector
- With wire: with crimped wires
1 x 250kPa MAP sensor
- Model: MPX4250AP
1 x Assembled v3.3 controller
- primary_trigger: VR
- secondary_trigger: HALL
- PowerFlyback: yes
- ignition driver: 6+2
- Knock and EGT: yes
- LCD and PS2: yes
- MAP connection: offboard(electronic)
1 x LCD4x20
- Color: green
1 x Econoseal36-harness
1 x Econoseal18-harness
In the past couple days I mapped out most of my basic wiring, and the BMW stock wiring. I am planning on making a harness to link into existing sensors. I am then going to have a 2nd harness for all the new stuff I will need. The main reason for this is so I can return the car to stock computer if needed. Think this is the safest plan for my 1st setup. Even if it might make things a bit more complex then required on the wiring part of things.
Tonight I made up my DB9 cable to the computer and DB9 to LCD.
Question: What is the bare minimum I need to hook up in order to connect to the computer and not fry the board? I figure all the grounds and power. But do I need to hookup the injectors and flyback, even if I don't have injectors or plan to test those outputs? I really just want to test that my LCD is wired up right, get the contrast and such.