Thread: 86 rangie classic 3.5 efi no spark!

hey all, got a problem with my classic, it died on me out in the bush the other week after going through a small water hole.
its had no spark since spluttering to a halt.

i have replaced the module in the box under the coil and have now replaced the pickup in the dizzy. still have no spark at all! it has power at the module B and C terminals but none at the other side that the pickup plugs into, it has power at both terminals on coil.

its got me stumped! any help would be appreciated!

Step 6 - This next test will tell us if the primary ignition system is supplying an electrical trigger pulse to the ignition coil. To test the ignition trigger pulse remove the small wires from the coil. Using a voltage multimeter connect the leads to both wires and set the multi meter to DC voltage. Next have a helper crank engine over and observe the voltmeter, if the meter jumps from 12 volts and then to zero in rapid succession the trigger system is working properly. Next check the ignition coil for corrosion if no corrosion exists use the voltage multimeter to test the coil primary and secondary circuits for continuity and resistance. This testing procedure will work for most automotive coils. With all wires disconnected from the coil, use a multimeter switched to ohms and check the resistance between the small side terminals of the coil. You should get a reading of 0.75 to 0.81 ohms of resistance. Then check the resistance between on either side terminal and the center high output terminal. The ohms reading should be about 10,000 to 11,000 ohms. Any significant deviation from these numbers would indicate the coil is shorted and needs to be replaced. If there is no primary ignition trigger output proceed to next step.

or to see the whole thing

How to Test an Ignition System

Regards Philip A