
I am a New Jersey State Inspector so most of my job is diagnosing check engine light codes and I can easily say that no tool has helped me to find the DTC causing problems, just like my red line. Smoke machine and simple intake marks, these tools are truly invaluable, easily detecting evaporator leaks, vacuum leaks, PCV system leaks and even oil leaks.

Enhanced Elitech ILD-300 Infrared Refrigerant Leak Detector: Advanced HVAC Halogen Tester with Selectable Gas Functionality
9 Review

💪 Enhanced Universal R134A Valve Core Remover/Installer by Mastercool (81290)
9 Review

VIVOHOME 220LB HVAC Electronic Digital Refrigerant Charging Weight Scale – High Precision with Protective Case
9 Review

Robust Robinair (RG3) Portable Refrigerant Recovery Machine, 115V, 60Hz -Efficiently Recovers Liquid and Vapor Refrigerant
9 Review