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General Questions ---- 29-05-2018 Need Help no serial connection. End user had problems connecting to ecu. We have tested on 5 pc and many usb to serial connectors. Problem started as a small issue but got worse over the time and now we have total lost any kind of connection. ECU 17956 The ecu is running nice in the testbench but no contact. I will not start to repair it before I have heard from vems.hu. We have send a mail to the web shop but nothing heard yet. I really need to get his car up and running so please help. Peter vems.dk ---- 30/1-2018 Haw to connect flex fuel sensor to pcb 3.8 ECU 9952 How to connect GenBoard/VerThree/FlexFuel sensor to the "SCL" of v3.8 pcb * note: 2nd wheelspeed available on pin if ECU ordered with 2nd wheelspeed, eg EC10/pin6 below (or is that a separate project ? Please never mix different projects on same page, please create separate page) ** check the paper docs received with the device. ** Safe to feed frequency or other 0-5V signal with 1k to unknown EC10 or other pins (and see wheelspeed [http://www.vems.hu/vt/help/v3/v3_analog_input_calibration.html analog input] reactions in VemsTune) See GenBoard/VerThree/Schematic to connect to port SCL * check in the schematic which AVR pin, and measure if at least the protection resistor is there. [http://www.vemssupport.com/forum/index.php?topic=2499.0 On v3.8 filter and protection is embedded in PCB] * see InputTrigger/WheelSpeed '''Second Wheelspeed input''' and any references, eg. SubaruEj * Note: normally wheel speed 2 is wired to EC36 pin 30 ** this pin also goes to p259 ** no NEED to cut the p259 trace, the p259 output does NOT pull to GND (or do anything) if not activated. ** so wiring SCL to EC36 pin 30 can be done without tracecut. ** only start any such modification if willing to follow the schematic to verify any hint, and avoid static electricity damage http://www.vems.hu/files/MembersPage/PeterJensen/wheelspeed2.jpg http://www.vems.hu/files/MembersPage/PeterJensen/wheelspeed2_back.jpg ---- '''BMW 88 pin Boost valve''' We need to connect a '''N75 boost valve''' to this 88 pin ecu but what pin will we connect to? '''Econoseal 10 pin connector''' Pin 8 and 9 Extra output with flyback. * What does it mean ? (p259 or inj-FET or what ?) ** exactly as written, same as in VemsTune * so in VemsTune, outputs menu select boost control and '''choose''' ** '''Extra output 5''' if you connected to "Extra output 5" ** '''Extra output 6''' if you connected to "Extra output 6" http://www.vems.hu/files/MembersPage/PeterJensen/51731635411_2.jpg ---- Round only AIM Hi Setting up aim coolant temperature something goes wrong while temp goes form 99 to 100 degrees. Should be 100 but at the display i can see number 180. I have used the predefined values and working great until it gets to 100 degrees. Firmware version 0.5.3
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