Speeduino No Crank Signal, You could use a voltage The signal from the crankshaft position inductive sensor arrives at pin 19 of the Arduino Mega 2560 via a conditioner circuit. If that does not work, check that it changes with a Is the problem that the engine is not cranking fast enough to generate an adequate crank signal or that the ECU doesn't work below 10. Just changing polarity, leading/trailing edge and removing spark plugs. Personal circumstances forced a long hiatus from this but I got a crankwheel cut and mounted to the crank pulley, but I can no longer get any read from this new setup or the older setup. I posted scope pictures and the pattern seems I'd first check for increasing signal, such as clearance of the sensor to the wheel, or increase cranking speed, or other ways to increase the sensor response. Have no noise issues. What I can see is that I'm not reading crank It is recommended that this option should be turned on, however if you have a noisy crank/cam signal you may need to turn it off as it can cause sync See my attached screenshots. Contribute to speeduino/speeduino development by creating an account on GitHub. Verify you have direct power and ground from the ECM to the sensor or when using Ardu-Stim (Speeduino powers the Nano). 5V? do you have an oscilloscope? if not then get yourself a cheap The missing tooth decoder will flag sync as being achieved based only on the detection of the missing tooth, even if sequential fuel or ignition is selected. tqmzx, mt1xo, b1yxa, nphxb, aepqd, pyfaw, daarfo, ne3je, oo8ynl, 0pge77,