Ignition Coil Resistance
- Disconnect ignition coil leads. Measure secondary coil resistance (secondary tower-to-secondary tower). Resistance should be 8000-15,000 ohms. If resistance is not within specification, replace ignition coil.
- Ignition coil primary resistance value is not supplied by manufacturer. If ignition coil is suspected of causing a misfire or a no-spark condition, switch coil locations on EI module. If problem follows questionable coil, replace original coil.