To check a pick-up coil, use a multimeter to measure its resistance. Disconnect the coil from the wiring harness, then set the multimeter to the ohms setting and probe the coil terminals. A typical reading should be within the manufacturer’s specifications; if it's significantly higher or shows an open circuit, the coil may be faulty. Additionally, you can test for proper operation by checking for voltage output while cranking the engine, ensuring it produces a signal.
check the pickup coil. that was the prob
No input voltage to the coil or the coil is bad. Check the distributor for issues and the wires.
Check coil pack.
check your ignition coil, if it's not coming out of there you need to look into a new ignition coil , check ignition circuit next
check your rotor & pickup coil
Check the pickup inside the distributor and see if its OK. Do you have spark at the ignition coil? Check the wires. Or the cap and rotor assy.
u have to pull the whole distributer to change the pickup coil
check the pick up coil on the left side cover of the engine they have a stator and a little box that's the pickup coil check if its damage or the ignition coil
check pickup in the distributor
To test the pickup coil on a 1994 GMC Yukon 5.7, first disconnect the wiring harness from the distributor. Use a multimeter to measure the resistance across the pickup coil terminals; it should typically read between 500 to 1500 ohms. If the reading is outside this range or shows an open circuit, the pickup coil is likely faulty and should be replaced. Additionally, you can check for voltage while cranking the engine; no signal may indicate a bad pickup coil.
The Hall effect.
check the two relays mounted on the firewall right in front of the driver side.