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Rob Humphris - Cambridge, UK. http://www.vems.co.uk ----- Big problems with MattJ's install. Matt reported erratic spark on cranking, and then no spark. We checked the wiring, there is continuity between power and the EC36 pins 33 and 34 (coil 01 & 02) when plug is removed from unit and probed. Marcell recommends 5A fuses, separate for each ignition channel (either at the ECU control pin, or the +12V pin of the transformer primary). Also there was an issue with the fuel pump relay, when it was set to p259 channel 5 the fuel relay did not switch to prime the system. When the relay driver was changed to INJFET the relay primed okay. After cranking the relay KEEPS RUNNING until the unit is switched off! Double (triple-) check GenBoard/Manual/GroundConnections, also check flyback (EC36pin23 connected to injector common +12V) just to be sure. * If primary trigger is VR, than it can be triggered with very low amplitude signal/noise (unless the engine is running when the signal pushes the arming threshold high). ** A 20k pullup on the VR signal (EC36pin27) to +5V usually fixes this. ** But it usually only happens when the ground system is not OK. ** measure voltage on the VR-input (controller powered, engine off) ** measure ohmage of the VR-sensor (usually 450..1200 Ohm) I have asked Matt to send the unit back to me so that I can bench test it. Its a pity as the customer has had all manner of issues with the ALS and its not looking good :( Model is a 4+4 serial number 638 http://vems.hu/www.vems.co.uk/VEMSConfigs/configMatJNoSpark.txt * since ignchmax=01 , this shouldn't be a problem, but I'd still fix ** h[2]=01 02 07 01 07 01 07 01 ** to recommended ** h[2]=01 02 01 02 01 02 01 02 http://vems.hu/www.vems.co.uk/VEMSConfigs/tablesMattJConfigured.txt === Latest News === I recieved the unit back and expected the worst, but the moment I tried it on the bench it behaved fine, signalgen allowed me to 'rev' the engine and see everything flashing on my test light. The unit was sent back to Matt and he tested it - exactly the same problem: No spark, and the fuel pump primes okay, but after cranking the pump stays on all the time. ----- Due to public demand the working megaloader file is available for download: http://vems.hu/www.vems.co.uk/VEMSWinTools MembersPage/PhatBob/ALSConfigFix ----- http://www.vems.hu/wiki/index.php?page=EasyTherm note that only the boards without the AVCC mod use the _287 files. The rest use files which end with _256 MembersPage/PhatBob/BoostControl - Working out the correct connection and configuration for the webshop pneumatic valve. WebshopIgnitionOptions - explains the webshop ignition coil options ----- As requested on AFreshTiny page. AFreshTiny 5A control. It would be good if the 5A control could be activated in a similar way to the Genboard Misc outputs. Trigger on/off on: * Lambda - so that the system can turn on a 5th injector or warning light. * EGT - to trigger water injection, 5th injector, turn off boost solanoid or trigger a warning light) * Analog Input - to set on off points with either boost or tps - would work well as a 'soft' TPS switch to turn on n2o systems or any of the above suggestions. ----- '''Currently Developing''' Working on a specific start-up guide for customers who've had their VEMS installed or bought a wiring loom http://vems.hu/www.vems.co.uk/VEMSLoom/LoomGuide.doc UsabiLity UsabiLity/GenBoard/WinTools PIDControlTuning MembersPage/PhatBob/UserGuide MembersPage/PhatBob/ToyotaFitting MembersPage/PhatBob/Marketing MembersPage/PhatBob/InjectorNotes VehicleFitment/Toyota VehicleFitment/Honda VehicleFitment/Nissan ----- '''Compulsory''' MembersPage/PhatBob/PurchasePage ----- '''Previous Problems Worth Remembering''' MembersPage/PhatBob/MagnettiMarelliSensorProblem ----- '''Handy URLs''' A list of Ecu Sensors and their functions http://www.pgmfi.org/twiki/bin/view/Library/EcuSensors A fairly good list of Japanese car's ECU pin outs http://www.plxdevices.com/ecudatabase.htm
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