This is normal for worn distributor cam lobes or loose point plate. The manual explains how to interpret the average reading. Also check your engine ground connection.
Working around running engines and electrical systems carries inherent risks. The manual begins with vital safety protocols, such as engaging the parking brake, working in well-ventilated areas to avoid carbon monoxide poisoning, and keeping clothing clear of moving fan belts. Tool Overview and Buttons
Turn the range dial to the designated tier matching your cell type (e.g., 1.5V or 9V). Keep the BLACK lead in COM and the RED lead in the V/ Ωcap omega terminal. equus 4320 manual pdf
If you accidentally measure high current on the wrong setting, you might blow an internal fuse. Refer to the maintenance section of the manual for replacement instructions.
The Equus 4320 manual serves as the primary technical reference for the Innova/Equus 4320 digital diagnostic scanner. This pocket-sized tool reads Powertrain (P) Trouble Codes on OBD2-compliant vehicles. Key Document Metadata This is normal for worn distributor cam lobes
Information on how to clean the gauge and replace the batteries. Key Sections of the Equus 4320 Manual PDF
If you are working on a specific vehicle repair project, let me know (e.g., fuel pump, battery, alternator) or the specific symptoms your vehicle is experiencing . I can provide the exact step-by-step diagnostic workflow you need to follow with your meter. Share public link Keep the BLACK lead in COM and the
Use the search bar to type "4320" or look under the "Legacy Tools" section if it is an older generation device.
Voltage checks determine if a circuit has power or if there is an unwanted voltage drop across a load. Insert the test lead into the COM jack. Insert the RED test lead into the V jack.
10MΩ input impedance, making it safe for sensitive automotive computer circuits. Measurement Ranges: DC Voltage: Up to 500V. AC Voltage: Up to 500V. Resistance: Measures up to 20MΩ. Special Functions:
If you cannot find a digital copy, sellers of used Equus 4320 units sometimes include photos of the manual. You can message a seller asking if they will scan and email the manual for a small fee.