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Planning VEMS 3.3 for turbocharging BMW M50B25 engine in an BMW E36. Lives in Sweden Gothenburg. '''Enigne Spec:''' *M50b25 without vanos *Je Forged Pistons Compression 8,1:0 *MLS headgaskset 1,8mm *ARP headstuds *500cc injector *Preicison Turbo SC-44 *Tial 38mm wastegate *50mm PPF blow-off. *600x300x75mm intercooler *Sachs heavy pressureplate 240mm *Organic disc 550nm *Walbro 255l/h fuelpump *Primary trigger: VR *Cam Trigger: VR Began to calibrate the sensors today. Started with WB02. Used the config from the manual and added my pump_pw_zero:0x64. When i then tried to calibrate the O2% the values were unstable and hade a difference between 20.5-21.5. All values on mlp07 page were unstable except AFR. Any suggestion? Then i began with EGT. Boiled it at and set the value on 100C. On ice it showed 0 C. Then i put it onto gasflame on a lighter. 880 degress just above the flame. Shouldn't this be 677C? At 15 C in the garage it showed 11C. Only changed multipler, the offset didn't change anything. The IAT and CLT: Ref - IAT - CLT 0 - 0 - (-3) 22 - 24 - 19 64 - 65 - 61 100 - 99 - 94 Should i be satisfied with this or should i try a diffrent temp sensor file? The reference temp is taken by a normal thermometer Q: The wiring is almost done, 80% done. Have made a piout table, but unsure about how to wire the knock A&B. Also unsure about the Idle Air Control Valve. It's a Bosch 0 280 140 545 1738 981. It has 3 pins. I guess one is ground, the second 12v supply and the third should be connect to injector #7 or #8? * is it same as MembersPage/GergelyLezsak/IdleControl ? Q: I measured the trigger angle 60 degrees before TDC. * that is perfect, 40..100 degrees are OK, and 40..60degrees is the best. Q: I want a tachometer signal to the stock rpm gauge. How should i set this up? Is there an output for this, and can vems handle this when I'm using COP? * use a separate output, and configure config.tach_channel and config.tach_divider; If you have no luck (review, measure, publish, but) consider that some RPM gauges require high input voltage signal which can be derived from the ignition transformer primary (using a few diodes). The stock wiring scheme: http://www.autolib.diakom.ru:8001/CAR/BMW/1992/325%20Series/WIRING%20DIAGRAMS/11.pdf Pin out: ||'''Function''' || '''EconoSeal pin''' || || Sensor power 5V || 36-28 || || Sensor ground || 36-26 || || Power ground || 36-5 || || Power ground || 36-21 || || Power ground || 36-22 || || Power ground || 36-32 || || Flyback || 36-23 || || injector 1 || 36-7 (Injector A) || || injector 2 || 36-19 (Injector B) || || injector 3 || 36-8 (Injector C) || || injector 4 || 36-20 (Injector D) || || injector 5 || 36-9 (Injector E) || || injector 6 || 36-18 (Injector F) || || CLT || 36-14 (CLT Coolant Temp) || || IAT || 36-2 (Intake Air Temp) || || TPS || 36-1 (TPS signal) || || TPS 5v || 36-28 (TPS +5v) || || IAC || ? || || Crank position sensor (vr) || 36-27 || || Cam position sensor (vr) || 36-13 || || knock signal A || EC18-2 || || knock signal B || EC18-3 || || coil1 || 36-35 (Coil #0) || || coil2 || 36-33 (Coil #1) || || coil3 || 36-34 (Coil #2) || || coil4 || 36-11 (Coil #3) || || coil5 || 36-24 (Coil #4) || || coil6 || 36-10 (Coil #5) || || Fuel Pump Relay || 36-15 || || nernst_cell || 18-13 || || heater - || 18-18 || || pump - || 18-7 || || pump + || 18-9 ||
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