Alright gearheads, this MSD ignition tester is seriously handy for anyone working on modern engines. The 89981 model can test both traditional single channel ignitions AND the newer coil-per-cylinder systems, which is awesome because let's face it - engine technology keeps changing. The backlit display is large and super easy to read, even in dim garage lighting. It's got electronic/points and magnetic trigger inputs, plus this cool engine speed sweep test mode that lets you run through the RPM range automatically. This is perfect for testing accessories like shifters or nitrous solenoids to make sure they're activating properly at different RPMs. The single knob control makes it really straightforward to use - no complicated button combinations to remember. It also displays battery voltage, which is always useful information to have. Whether you're a professional mechanic or a serious DIYer, this tester takes the guesswork out of ignition diagnostics. The build quality feels solid like you'd expect from MSD, and it's compatible with pretty much any ignition system you're likely to encounter. It's one of those tools that pays for itself the first time you troubleshoot a tricky ignition problem quickly instead of wasting hours swapping parts randomly. If you work on cars with different types of ignition systems or just want a reliable tester that can handle both old and new technology, this MSD unit is definitely worth the investment. It's precise, easy to use, and saves you so much time when you're trying to figure out why an engine isn't running right.
Free 30-day returns 
Free 30-day returns
