SOURCE: 1990 dodge shadow wont start no spark from coil
THERE IS A STATOR IN THE DISTRIBUTOR, THIS IS THE SAME AS A CRANK SENSOR, HAVE YOU CHANGED IT?
SOURCE: 1995 Ram 1500. Just died? No votage to coil, no spark?
The power supplied to the fuel pump, ignition coil, fuel injectors and parts of the power module is controlled by the logic module through the Automatic Shutdown Relay (ASD):
The ASD relay is closed (allowing power to flow through it) when the ignition is first turned on. If the signal from the ignition reference is lost while the engine is running, the logic module cuts power to the ASD, which in turn removes power from the fuel pump,ignition coil, injectors and those parts of the power module. This causes the engine to shut down.
Failure of the automatic shutdown relay is often shown as inexplicable stalling or refusal to start. The ASD can be triggered by a broken wire or short in another place, e.g. the fuel pump. Hope this helps, and did you try to retrieve any DTC codes?? Be glad to help friend.
SOURCE: 93 mazda mx6 (v6) no spark.
Coil resistance is not a good way to determine if the coil is good or bad. It might still need replacing. Check to see if your getting a pulse signal to the coil. You can do this by hooking a milivolt test light to the trigger wire and ground. If it doesn't flash as you crank the motor, check out your pickup coil in the distributor. Some of them you can change. Some you have to replace the entire distributor. Sometimes oil will leak into the distributors on certain models which use an optical pickup. If this is the case, change the seal to fix the oil leak and GENTLY clean the optical sensor and photo wheel.
The "Checking For Spark'' test should be performed prior to this test.
This is a basic test of the ignition system that
systematically examines the battery, the coil, the engine controller,
and its wiring harness and connections; the most likely culprits in a
no-start condition at this stage. Fabricate this special jumper with a 0.33 MF capacitor in-line to test the ignition coil
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Terminal locations on the engine controller 14-way connector-1989 models
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Engine controller 60-way connector-relevant terminals for testing are shown numbered
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The ignition must be turned OFF prior
to unplugging the engine controller connector. If it is not, electrical
surging could occur causing damage to the unit or other electrical
components in the vehicle.
This procedure requires an ohmmeter to test the coil
packs for primary and secondary resistance (specifications are given
for an ambient temperature of 70-80°F/21-27°C). The two coil packs contain five independent coils, which fire paired cylinders (shown numbered)
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Location of critical terminals for checking the coil primary resistance-V10 engine front coils
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Location of critical terminals for checking the coil primary resistance-V10 engine rear coils
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Use an ohmmeter to check secondary resistance as shown
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