Waekon EGR Tester Features: • Electronically controlled EGR system tester for GM Linear and Digital EGR systems. - Expanded coverage for foreign and domestic applications is available with the Waekon 47001 adapter kit (not included). • No faster way to pinpoint intermittent feedback sensors and EGR valves, NOx failures or enginer performance problems. • Checks vacuum control solenoids, vacuum lines and EGR passages. • Identifies intermittent problems that alternative methods including scan tools can't. Features: • Duty Cycle - complete control over valve opening. Find intermittent sticking or improperly seating EGR valves. • Feedback Sensor Display - feedback sensor voltage over the full range of EGR valve motion. • Solenoid Status LEDs - indicates energized, short, open. • Glitch Capture - monitors feedback sensor for flat spots • Solenoid Activation - three buttons allow you to manually energize up to 3 solenoids simultaneously. • Kit includes: EGR tester unit, 2 adapter cables for GM Linear and Digital valves, comprehensive instruction/diagnostic manual, zippered storage case.