(07-13-2016, 07:10 AM)fixkick Wrote: but are you checking spark at the coil?
coil >>>> center >>>spark plug wire>>> spark plug , ground.
We will need to recheck that. During earlier tests a confirmed spark was observed from coil secondary to spark plug, but we have neglected to reconfirm this in the most recent series of checks. Thanks for reminding us not to skip a key test.
like that.
known good plug and wire, to ground,
if this fails, then the ignitor is not firing,
if the ECU to ignitor trigger is dead (orange wire), then ECU inputs must be checked.
We did have voltage measured between the orange trigger wire and ground during cranking test. We will also need to remember to re-check for presence of a code 41 after each test.
ok your suppressor only runs the tach,
lots and lots of spark systems , huge variance by year.
As we are both novices to electronics but trying to learn.. can you comment on whether there is way to use a digital multimeter set to volts measurement to confirm a normal signal pattern from the igniter/ECU wires? For example, if the igniter trigger signal wire output is a square wave 5V, should a true-RMS multimeter be set to measure AC Volts or DC Volts in order to capture a meaningful voltage value? If the meter were set to measure DC Volts, is the voltage reading a simple average of the wave form, or does the duty cycle (dwell?) impact the voltage value? Thanks again.