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MSD Digital Single-Channel Ignition Testers

MSD single-channel ignition testers allow you to check the entire ignition system while it is in the car. Once the ignition tests good, you can continue troubleshooting and find the culprit. The testing units produce a simulated trigger signal that fires the ignition just as if the engine were running. A special load-producing, clip-on spark plug is included to connect to the coil wire. If the spark is unable to jump the gap of the tester, there is an ignition problem and you can trace it down. The testers operate on 4, 6, or 8-cylinder engines and will simulate up to 10,000 rpm.

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