1994 Dodge Dakota Repair Question
I'm getting no spark from the coil. Where should i look first.
hard to do testing without a scan tool to verify crank sensor reading. it is the most common failure for this condition. try removing the connector and looking for corrosion.
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Hi guys. Check for voltage at the ignition coil primary "+" wire, any injector, or either small wire on the back of the alternator. You should see 12 volts there for one second when you turn on the ignition switch and you might hear the fuel pump hum too for that one second. What's important is if that voltage comes back during cranking. If it doesn't, suspect the crankshaft position sensor just mentioned.
Code 42 is related to something shorted on the line coming from the automatic shutdown (ASD) relay that feeds the ignition coil, fuel pump, and injectors. The clue there would be there's no 12 volts to those items for that first one second when you turn on the ignition switch. That is best tested with a test light. Most digital voltmeters don't respond fast enough for you to see that voltage.
You might try swapping the ASD relay with a different one like it. They don't fail very often but you don't want to overlook something simple.
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