I have a 1981 corolla has a ap1 swap
It has a chase bays harness with a link g4x ecu
I'm having trouble getting rpm signal
I've went over the harness everything looks good.
Ive tested continuity on harness side and sensor side everything is good.
my coil packs are new
my grounds are good as well as the one behind head.
I've changed my crank sensor as well. Any info is appreciated thanks