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Summary of change:
Teppo Kalske from Finland, born 1972 I'm currently using VEMS on my daily driver Audi RS2 with 16x14 maps. Using 1.1.23, soon testing 1.1.24 firmware with auditrigger ---- [http://www.audiclub.fi/kalske/vems/119/ OLD dump and log from 1.1.9] ---- Yesterday I had plenty of trouble starting the engine when temp around -15°C. Engine crank about nice, took bit of a while to get cam sync (1.0.53). After getting sync engine tries to start (promises) but fails to start. Problem is that there seems to be a strange gap in ignition(?) when mode is changed from crank to running. '''A:''' You have a Very High ignition advance from low RPM, (30+ degrees), also a very low cranking threshold rpm (300) and a low cranking advance Set all three leftmost bins in the whole spark table to 15,9,25 and set a 15 degree cranking advance, 400 rpm threshold and try again //Emil '''Result:''' No difference Some inertia is needed to get over it and with a cold engine it is a real problem. I tried different crank and afterstart ignition and fueling settings, no luck. Another problem is that ecu seems to do too much Air Den enrichment. If I tune fuel-Map when IAT is around 10°C, it has to be changed to leaner about 5% when IAT is below 0°C, and even more when IAT is -10°C. (With warm engine of course) Log, dump and msq can be found here: http://www.audiclub.fi/kalske/vems/ --------- I need help for picking right sensor-files, these are the measured points: CLT (audi 5cyl 20vt standard sensor): -20°C 11000 Ohm 0°C 6000 Ohm 100°C 200 Ohm IAT (audi 1.8T 20v sensor): -40°C 80000 Ohm 20°C 2400 Ohm 130°C 100 Ohm --------- Additional info to my 55pin v3.3 order * all with MAP connection 400kPa onboard with default nipple for PnP fitment * PowerFlyback with 30V diode * Marcell found that 15..20k pullup works very well I also verified signal amplitude, and ghost amplitude. Margin is good (better than 27k pullup and 2,7k pulldown) * LCD-connector through endplate (DSUB9 with flying loom) ** no PS2 connector * WBO2 connection with 5pin SSC male ** WBO2 pin 1,3,4,5,6 goes to SSC5 1,2,3,4,5 (the heater+ is fed from an external fuse) * Knock: yes, via motronic55 pins * EGT yes, we agreed endplate flying loom (endplate mounted K-thermocouple connector would be possible, but the flying loom is more rugged) * STD MAT pullup for use with Bosch 085 sensor (NOT stronger MAT pullup (429..430 Ohm) for better precision with audi std PTC IATs) - for 3B * SSC6 female(pin1..5 are outputs, pin 6 is GND) flying loom SSC female for COP upgrade ** 5 logiclevel outputs: 4 stepper + 1 strengthened i259 output, using 255Ohm (=510 Ohm/2) protecting resistor * '''small in-box 25A relay - Not needed - Jörgen.''' ** switched by 3B pin27 (+12V) and 3Bpin24 (ground) ** main circuit is 3Bpin18 (+12V from battery via S27 fuse) and 3Bpin37 (flyback and power to injectors) ** Note: '''Fuse S27''' is rumoured to be between battery and 3Bpin18 : please verify, and '''20A fuse recommended''' ** Note: the AAN provided power to the injectors properly, but marcell's 3B harness did NOT. Marcell thought that was a problem with his particular (kindof broken) harness. We don't risk to connect 3Bpin37 to 3Bpin27 cause it might overload the ignition switch '''I run an S2 with 3B and untouched harness, the injectors is powered throught he loom from the fuelpump relay. The in box relay in the Bosch motronic box is only there for cleaning the MAF after the ignition has been turned off. It looks like the relay is controlled by the MAF through pin25. -Jörgen.''' ---- '''WBO2 on SSC5 male standard''' - applies to audi AAN and 3B (also to BMW): *pin1 nernst,WBO2 pin 1 *pin2 WBO2 pin 3 (use a 5A fuse from +12V supply wire) *pin3 heater(-),WBO2 pin 4 *pin4 pump(-),WBO2 pin 5 *pin5 pump(+),WBO2 pin 6 '''3B ECU extra connector pins:''' motronic55, pin1 is EC36 pin11 (logiclevel or power out?) '''SSC6 feemale''' *pin1 stepper A,EC18 pin 4 *pin2 stepper B,EC18 pin 10 *pin3 stepper C,EC18 pin 5 *pin4 stepper D,EC18 pin 11 *pin5 EC36 pin 12 (logiclevel or power out?) *pin6 GND ---- '''AAN ECU extra connector pins:''' '''SSC6 feemale''' *pin1 mcp3208 pin6,ch5 *pin2 mcp3208 pin7,ch6 *pin3 mcp3208 pin8,ch7 *pin4 EC36 pin 34 (power out) *pin5 EC36 pin 36 (power out) *pin6 GND
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