Project VW Passat VR6
- Demo/Test Vehicle for VEMS V3.3
- VW VR6 6 cylinder engine
- Firing order 1-5-3-6-2-4
- Sequential fuel injection
- 60-2 VR crank trigger
- 1 Window hall cam trigger
- NTC temp sensors
- Standard TPS
- 2 OEM knock sensors
- High-Z injectors
- 3X double ended waste spark coil with ignitor
- 2 wire PWM Bosch Idle Valve (min/closed duty ~25%)
- Bosch #0 280 140 512/ VW #034 133 455B,2 wire, 8.2 Ohms (~1.5A)
- Can 2 stepper Outputs be combined to handle 2 amps?
- there is no official way for this.
- if used as ignition outputs, ign_dualout would work, but connecting 2 stepper outputs directly would most likely blow it _very_ soon (depending on config)
- if you only need 1-side (like pull up, or pull down) driver, it is easy to use 2 diodes to make it a higher current output. This is safe. However, driving them simultaneously ... not supported (except for ignition, with the ign_dualout).
TODO:
- Scope Idle valve,Tach signal,Injectors,Ignition DONE
- Idle 100hz,4.4ms at idle (44%DC)
- Tach +10.8v, 66% DC "on", 3 tach signals per rev
- Injection pulsewidth: 3.2ms warm
- Ignition: 4.8ms dwell at idle, 13.8vbatt
- Measure resistance curve of temp sensors
- Install and configure v3.3 board
Current Order:
- 1-wire interface: NO
- Ignition driver: 4+4
- Knock and EGT: Yes (2 knock,1 EGT)
- LCD and PS2: Yes
- MAP connection: Onboard 400 kpa)
- Power Flyback: 30v bidr
- Primary_trigger: VR (60-2 wheel)
- Secondary_trigger: HALL (one window)
- Lower (than 510 Ohm) resistors for i259 logiclevel outputs for use with VAG 1.8T COPs
- OEM Bosch temp sensors
Build notes:
- Board_version=v3.3
- Serial_nr= 857
- pump-= 4.14V
- wbo2_pump_pw_zero=0x67
- pump+= 4.14V
- (C103=1nF, no D100)