well you can test the ESD module but the pick up coil which is like 10$ did some weird ass shit to my car but still passed the quick test in the Chiltons manual.
if i remember right they say take the cap off.. unplug the pick up coil and test with a ohm meter that it reads good(0ohms) then spin the motor over and the meter should fluctuate while the motor turns but as i said mine passed this test but still wouldn't run worth a shit but it wasn't just at idle.
good luck and post up if you ever get it fixed.
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