roger62 Posted December 14, 2023 Report Share Posted December 14, 2023 Hi i have fitted a Link Storm G4+ on this engine. Problems to get stable spark on start. Use OEM crankwheel 4 tooth.. Modified Hall sens for 1 signal per rev. Double ignition moduls and double coil ( wasted spark). Trigger problems for on ign. test spark normal. Alfa 155-Crankensor-4 teeth.pdf ALFA155Q4-TH_END DYNO.pclr Quote Link to comment Share on other sites More sharing options...
Adamw Posted December 15, 2023 Report Share Posted December 15, 2023 The picture of the oscilloscope screen and the pdf document attached shows the sensor is wired with incorrect polarity, you need to swap the +/- wires. The waveform should first rise slowly from 0V, then sharply fall as a straight line across 0V to the negative voltage, then rise slowly back to 0V. Correct and incorrect polarity examples below. Note the Storm has an ocsilloscope function built in. If you have any further problem, please use the internal trigger scope so we can see both crank and cam together. >ECU Controls >Trigger Scope. Click the capture button while the engine is cranking or running then "save as log". Quote Link to comment Share on other sites More sharing options...
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