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by Thomson2372
Mon May 16, 2022 12:31 pm
Forum: Diagnostic discussion
Topic: Inverted crank signal
Replies: 1
Views: 298

Inverted crank signal

Hi, New to oscilloscope diagnostics so looking for some help. Have a mk2 mx-5 with intermittent no start. Cranks strong. No spark when not starting. Found that the crankshaft signal is inverted when it wont start. Seems to pull down from 5v instead of up (when its running it pulls up). Anyone have a...