When operating any electrical test equipment, safety is paramount.
For decades, the has been a staple in the garages of DIY mechanics and professional technicians alike. Known affectionately as the "Innova 3022" (following Equus' rebranding to Innova), this ignition analyzer is a powerful tool for diagnosing spark issues on older vehicles equipped with a distributor and conventional ignition systems—primarily cars, trucks, and small engines built before the mid-1990s.
Resistance testing helps diagnose sensors, coils, and other components. equus 3022 tester manual full
: As the successor company, Innova may have archived manuals for old Equus products. Go to www.innova.com and look for a "Support" or "Manuals" section at the bottom of the page. Use the search function within the support area, trying keywords like "3022", "Equus 3022", or "Equus Analyzer".
The (often branded as the Innova 3022 Digital OBD1 Code Reader ) is a classic, highly reliable diagnostic tool designed for older vehicles. Specifically, it reads onboard diagnostic generation 1 (OBD1) systems. While modern vehicles use standardized OBD2 systems, vehicles manufactured before 1996 rely on manufacturer-specific OBD1 protocols. When operating any electrical test equipment, safety is
Low internal battery, dirty test leads, or operator error (wrong range selected).
Since the original manual is not available, this section outlines the general process for common measurements using a 7-function automotive analyzer. Resistance testing helps diagnose sensors, coils, and other
This test checks the dynamic operation of sensors while the engine runs. Ensure the KOEO test is complete and the key is turned OFF. Start the engine. Let it idle for 2 minutes to stabilize. Press the button on the Equus 3022.
