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IMPORTANT: enter the case-INsensitive alphabetic (no numbers) code AND WRITE SOME SHORT summary of changes (below) if you are saving changes. (not required for previewing changes). Wiki-spamming is not tolerated, will be removed, so it does NOT even show up in history. Spammers go away now. Visit Preferences to set your user name Summary of change: Rob Humphris - Cambridge, UK. http://www.vems.co.uk MembersPage/PhatBob/PurchasePage MembersPage/PhatBob/ConfigProblem MembersPage/PhatBob/ToyotaFitting '''Currently Developing''' UsabiLity UsabiLity/GenBoard/WinTools MembersPage/PhatBob/UserGuide VehicleFitment/Toyota VehicleFitment/Honda '''must read ''' http://www.vems.hu/wiki/index.php?page=MembersPage%2FMichaelRichards%2FProjects%2FNicksGTX%2FTrigger http://www.vems.hu/wiki/index.php?page=MembersPage%2FFredrikJagenheim%2FBuildDevelopmentBoard ---- SARD 850 Injector opening times 16v 0.568mS 14v 0.768mS 12v 1.048mS 10v 1.408mS 8v 2.008mS 6v 2.840mS The closing times are also needed (it is the function of injector current and flyback voltage). The flyback voltage actually makes a huge difference. The opening times are not (by far) enough to calculate GenBoard/Manual/Config/InjectorOpening parameters. You can start from other's values, make sure * injopen=00 (or very very short for low-voltage flyback, max 100 usec) * battfac=10 (256..700 usec is usually OK) * injocfuel=2C (500..1200 usec usually) * injrampup_battfac=FF (IIRC 4082 ... in MegaTune, it does not have a simple physical unit like "usec" or similar) ---- Testing the new Nissan trigger setup: Firmware is [http://jagenheim.se/nissan_trigger-050911.zip here]. You will have to set this in your config: tooth_wheel_width1 = 16 # Number of primary triggers tooth_wheel_width2 = 1 # Hysterisis (15-17 triggers counts as a hit) This indicates that we've found the ''ignchmax'' cylinder. '''!DANGER!'''; this is for ''table'' testing only. Code is based on unstable trunk; which hasn't seen an actual engine since November last year! ---- '''Nissan S14 components''' Coil on plug http://vems.hu/www.vems.co.uk/VEMSWB/COPAndSchematic.JPG Having checked the wiring pins relate to the schematic: http://vems.hu/www.vems.co.uk/VEMSWB/NissanCoilOnPlugSchematic.png http://vems.hu/www.vems.co.uk/VEMSWB/S14CAS.JPG ---- http://vems.hu/www.vems.co.uk/VEMSWB/VEMSlcdDark.jpg http://vems.hu/www.vems.co.uk/VEMSWB/VEMSlcdLight.JPG http://www.pgmfi.org/twiki/bin/view/Library/EcuSensors ---- v3.2 Assembly documentation: v3.2 How-to power-up a new board. http://vems.hu/www.vems.co.uk/VEMS/ ---- '''Marketing pap''' VEMS gives you the full engine control that you need to bring out the best performance from your turbo/supercharged or normally aspirated engine. VEMS can be configured to use almost any standard OEM sensor for Throttle position. Coolant temperature. Air temperature. Crank and Cam sensors, Configurable for the 'standard' 36-1, 60-2 and customizable for different timing configurations. VEMS has an onboard Air pressure sensor (maximum XXXpsi) Additionally VEMS also provides the ability to use far more advanced sensors such as Up to 2 Wideband O2 (Low cost Bosch LSU4). Up to 2 Knock sensors. Up to 2 Exhaust Gas temperature. Using these sensors and sophisticated real-time software VEMS controls Sequential Injection of 1 to 8 fuel high or low-impedance injectors. (A Maximum of XXX injectors). Control of 1 to 8 coils for anything from single coil to wasted spark or coil on plug installations. Idle air control Fuel pump And unlike the competition with VEMS you don't have to have a costly Laptop to tune your car with, as a multiline LCD screen and PC keyboard can be plugged-in, which will provide you with all you need to monitor and tune the maps and enrichment settings. Throughout the development of VEMS, Customization has been by-word, we have provided miscellaneous control outputs for anything from Boost controllers, Nitrous solenoids, to Water Injection. As well as the capacity to measure two additional resistive values such as pressure or position. Datalogging capability is provided either direct to Laptop, or using an addtion Multimedia card interface. Rob, thanx, these are great. I guess we must split GenBoard/Marketing to GenBoard/Marketing/Logos and GenBoard/Marketing/Generic or GenBoard/Marketing/Features and move there. ---- v2.2 successfully controlling a Subaru EJ22 engine, using a Ford EDIS timing wheel and an EDIS-4 to provide the spark and TDC pulse. http://vems.hu/www.vems.co.uk/msavr/PullyMountedEDISWheel.jpg v3.1 will be used as a high boost fuel controller to drive an additional 4 injectors on a Nissan SR20DET using a basic fuel map and relying heavily on WBO2 and EGT to ensure that the engine is correctly fueled. ---- Interesting site GM parts company Delphi sell an injector for Methanol http://www.delphi.com/pdf/racing/multecbottomfeed_meth.pdf I have an EDIS problem - someone please help, the voltages shown are when the PIP is high, when it drops low nothing seems to happen. '''Circuit is bad.''' read PIP part on EdisIgnition/FaQ more carefully * AVR should be GND on the above drawing. * the midpoint of resistors go to AVR's IC3 pin directly (no zener) * the midpoint goes to 5V via a diode (zener is also OK, but check polarity). The voltage readings cannot be good (if you can, specify high/low voltages read from scope. The voltage levels on IC3 is the most interesting): http://vems.hu/www.vems.co.uk/msavr/EDISModificationVoltages.gif When I probe (with scope probe? likely 1MOhm? Measuring resistnace in powered up circuit is bad) the resistors output at J8 (to the AVR pin IC3??) the voltage gets pulled down and the injectors open. ---- After suggestions on IRC the new circuit looks like this: http://vems.hu/www.vems.co.uk/msavr/EDISModV2.gif ---- Ideas regarding Aquisition ShopKeeping/DefinativeListOfSensors ---- http://vems.hu/www.vems.co.uk/msavr/vems.gif http://vems.hu/www.vems.co.uk/msavr/vems3.1mk1.jpg http://vems.hu/www.vems.co.uk/msavr/vems3.1bottom.jpg http://vems.hu/www.vems.co.uk/msavr/vems3.1draft.gif http://vems.hu/www.vems.co.uk/msavr/vems3.1top.jpg ---- In an attempt to document my installation: * GenBoard/InstallPage/PowerUpToBootloader * GenBoard/InstallPage/PowerUpToBootloader Optional: Add document to category: Wiki formatting: * is Bullet list ** Bullet list subentry ... '''Bold''', ---- is horizontal ruler, <code> preformatted text... </code> See wiki editing HELP for tables and other formatting tips and tricks.