I brought the VEMS V3.3 some years ago and have only got round to building it. I have to say that technically the VEMS is superior to the Megasquirt but I just hate the documentation ! The Megasquirt has it all over the VEMS.
The Wiki at www.vems.hu is useful, I much prefer the Wikimedia formatting, but the worst thing is that the documentation is all over the place, conflicting and confusing. I guess once you’ve sorted it out, it makes the second time easier. I ended up making my own manuals by copying bits from Word, formatting and making PDF’s.
So probably about 6 hours so far, I’ve only managed to solder 2 links, but I think I know what I’m doing now, so as soon as I solve my immediate problem it should go rather quickly.
So my requirements are :
- 4 cylinder
- EDIS missing tooth VR sensor
- EDIS Coil pack
- Croma injectors (High-Z)
- off-board map
- Wideband Oxygen to help with tuning
So far, it looks like I need 4 FETS for the injectors, another FET for the WB02, and 4 IGBT’s for the coil pack.
So in order I’ve :
- installed D45 power link (used for stepper motor, which I don’t have installed but is easier to install the link now if I need it later)
- installed F1, I didn’t end up using fuse wire as its a little hard to come by, so I’ll use a 1 amp fuse externally
Coming up to do
- install power inductor (mine is marked 3R3 but instructions say 1R5 so just checking on this)
- install VR Sensor links
- install FET’s and IGBT’s
- install Econoseal connectors
- install flyback lead
- install map lead
- one-wire lead
- RS232 connections
- GND reinforcement
- Test
We’ll see how it all goes
