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Summary of change:
Suzuki Swift 4 cyl ? * Runs. * runs well when cold * runs well when warm, upto 5500 RPM ** primary trigger problem when warm, above 5500 RPM The engine crankshaft wheel was modified, and the ECU was also modified (apparently originally ordered with VR, HALL, but changed to HALL, HALL ?). Maybe the pullup resistor was installed on the wrong side ? (not the input, but the internal side of the protection resistor ?) '''Do you have oscilloscope ?''' cranksensor: factory 36-2-2-2 HALL was replaced with '''36-1 HALL.''' * sensor type ? * axial or radial sensor placement ? * min and max distance (as wheel rotates) * '''wheel geometrics''' ? ** thickness ? ** window size ? ** material ? not stainless, right ? v3 ECU has HALL, HALL input * primtrig HALL = 620mV when measured with 1k pulldown (so internal pullup is When engine is warm, trigger error (and misfire) above 5500 RPM. It is suspected that sensor does not pull to GND (or to <0.5V) as it should but perhaps to 1V or so ? ** they claim the sensor was replaced (with another factory HALL sensor of same type) and problem persists, so it is reproducible
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