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What does no ignition pulse mean?

What does no ignition pulse mean?

The connector may be corroded and/or not plugged in all the way or cracked and may have broken the wires inside. Check if the sensor is working by pulling a plug wire, inserting a spare plug, grounding the plug to the intake and cranking the engine. If there is spark then the reference sensor is working.

Will a bad crank sensor cause no injector pulse?

The crank sensor can cause no spark and no pulse to the injectors, however, it would be the ground side of the injector harness that was missing. You should still have 12v at the harness.

Why are my fuel injectors not spraying?

If it does not spray, the problem is the injector or no fuel pressure. The injector should have around 1.3 ohms of resistance, if it is open or zero resistance, it is bad. The injector could be totally clogged as well. Fuel pressure should be 9 to 13 psi.

What causes no spark and no fuel?

If there is no spark or fuel, then the first thing I would do is check the vehicle’s fuses and relays, particularly the EFI main and ignition relays. It may be possible that one of these components has failed and is cutting off power to the vehicle’s ignition and fuel systems.

Why am I not getting any spark?

Loss of spark is caused by anything that prevents coil voltage from jumping the electrode gap at the end of the spark plug. This includes worn, fouled or damaged spark plugs, bad plug wires or a cracked distributor cap.

What causes injectors not to Pulse?

So, the most likely cause, is that the fuel injectors are probably not opening. The (PCM) uses the trigger signal from the crankshaft position sensor; and/or camshaft position sensor to pulse the injectors.

What causes no fuel injector pulse?

The nature of the cause of no injector pulse is that there is no power input. The three main factors that lead to that condition are blown injector fuse, bad injector electrical relay, and bad wiring. If the fuse and relay are normal, you will need to check the cylinder without the injector pulse.

Can you still have spark with bad crank sensor?

Yes you can have spark with a bad crank sensor.

How do I fix no spark?

If you do not see a spark, there is an ignition problem. Remove a plug wire and insert an old spark plug or a spark plug tester into the end of the wire (the plug boot). Place the spark plug on a metal surface on the engine, or ground the spark plug tester to the engine. Then crank the engine to check for a spark.

What causes no spark?

How can I fix no spark?