EK wont start??????
04-18-2010, 01:56 PM
#1
DumpedTeg
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EK wont start??????
i have a 98 EK coupe that was miss firin and i changed the spark plugs and it cranked up fine and ran fine until i put my foot on the gas soon as i touched the gas it cut off and never cut back on then i changed the pick up and the coil in the distrubutor it cranked again then cut off when i touched the gas and now wont crank back up please help
04-19-2010, 07:09 AM
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Re: EK wont start??????
Guessing its coil/ignition related:
1. Test the Black/Yellow (BLK/YEL) wire at the igniter; it should have battery voltage with the Key On Engine Off (KOEO). The coil negative wire should also have battery voltage.
2. The Yellow/Green (YEL/GRN) wire should have 9 to 12 volts produced by the igniter. If the YEL/GRN wire has the correct voltage, the Engine Control Module (ECM) should pulse the voltage to ground, to create spark. This signal can be checked on a scope. Normal dwell is 10 to 14 degrees on a 4-cylinder scale. Also, the signal would be a square wave on a lab scope.
3. If the signal is good, look for a trigger signal on coil negative. Also, the dwell on coil negative should be close to the same at the YEL/GRN wire. If the dwell on coil negative is OK or there is a trigger signal, replace the ignition coil first.
Also look at Main Relay #1. My money is on a bad coil....lots of bad coils out of the box (new)
1. Test the Black/Yellow (BLK/YEL) wire at the igniter; it should have battery voltage with the Key On Engine Off (KOEO). The coil negative wire should also have battery voltage.
2. The Yellow/Green (YEL/GRN) wire should have 9 to 12 volts produced by the igniter. If the YEL/GRN wire has the correct voltage, the Engine Control Module (ECM) should pulse the voltage to ground, to create spark. This signal can be checked on a scope. Normal dwell is 10 to 14 degrees on a 4-cylinder scale. Also, the signal would be a square wave on a lab scope.
3. If the signal is good, look for a trigger signal on coil negative. Also, the dwell on coil negative should be close to the same at the YEL/GRN wire. If the dwell on coil negative is OK or there is a trigger signal, replace the ignition coil first.
Also look at Main Relay #1. My money is on a bad coil....lots of bad coils out of the box (new)
04-19-2010, 06:21 PM
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DumpedTeg
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Re: EK wont start??????
Thanks bro gonna try that tomorrow
Guessing its coil/ignition related:
1. Test the Black/Yellow (BLK/YEL) wire at the igniter; it should have battery voltage with the Key On Engine Off (KOEO). The coil negative wire should also have battery voltage.
2. The Yellow/Green (YEL/GRN) wire should have 9 to 12 volts produced by the igniter. If the YEL/GRN wire has the correct voltage, the Engine Control Module (ECM) should pulse the voltage to ground, to create spark. This signal can be checked on a scope. Normal dwell is 10 to 14 degrees on a 4-cylinder scale. Also, the signal would be a square wave on a lab scope.
3. If the signal is good, look for a trigger signal on coil negative. Also, the dwell on coil negative should be close to the same at the YEL/GRN wire. If the dwell on coil negative is OK or there is a trigger signal, replace the ignition coil first.
Also look at Main Relay #1. My money is on a bad coil....lots of bad coils out of the box (new)
1. Test the Black/Yellow (BLK/YEL) wire at the igniter; it should have battery voltage with the Key On Engine Off (KOEO). The coil negative wire should also have battery voltage.
2. The Yellow/Green (YEL/GRN) wire should have 9 to 12 volts produced by the igniter. If the YEL/GRN wire has the correct voltage, the Engine Control Module (ECM) should pulse the voltage to ground, to create spark. This signal can be checked on a scope. Normal dwell is 10 to 14 degrees on a 4-cylinder scale. Also, the signal would be a square wave on a lab scope.
3. If the signal is good, look for a trigger signal on coil negative. Also, the dwell on coil negative should be close to the same at the YEL/GRN wire. If the dwell on coil negative is OK or there is a trigger signal, replace the ignition coil first.
Also look at Main Relay #1. My money is on a bad coil....lots of bad coils out of the box (new)
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