jp_prat wrote: ↑Mon Aug 31, 2020 12:22 amData log wil provide information even if the engine is not running it stil is logging its sensors.LAV1000 wrote: ↑Sun Aug 30, 2020 9:19 am Forget my remark on measuring the sensor.I can try to hook a car battery with thick leads to the bike. Bikes battery is not the best anymore.
As jonbill mentioned it could be a battery issue.
On compression starter needs more current and voltage on battery drops.
If it drops to low, around 9Vdc on de speeduino, speeduino quits hence a sync loss.
It could also be starter going bad which generates electrical noise.
Can you post a datalog of a starting attempt ?
It probably is not starter noise, I powered speeduino from another battery that was fully charged too. Not sure if the noise from bad starter could go to the speeduino from some other way.. maybe? I am not sure.
I can post datalog, and i have tooth logger too now.
But if I try to start it with all the plugs in, there wont be much of a log because engine dont get rpm information. Tooth logger wouldnt show anything.
So would it be better to log start attempt with no plugs, or 1 plug ? With 1 plug its able to get rpm somehow. And with no plugs it doesnt have sync loss really.
Tooth log is needed to see if you get nice pulses from your toothed crank wheel, as long as you crank the engine it also will provide information.
To get used to it make some logs whit plugs out, data and tooth log.
And make some whit plugs in and see the difference especially battery voltage at the data log.
And make sure battery is fully charged, or hook up a car battery, also a logging case to see the difference