KOOBOOK 1Pcs Efficient Accurate Car Signal Simulators Multi-Functional Diagnostic Tool for Fault Detection and Adjustable Voltage Testing Easy-to-Use Automotive Tester for Emission Diagnosis sold2026 adds a touch of elegance

adds a touch of elegance to your car's interior

It fits 100‑125hp 2‑cycle (4-cylinder) models having pump cover screws without insulators

Or you could take off silicone pad to wash up

1 Female to 2 Male

KOOBOOK 1Pcs Efficient Accurate Car Signal Simulators Multi-Functional Diagnostic Tool for Fault Detection and Adjustable Voltage Testing Easy-to-Use Automotive Tester for Emission Diagnosis sold2026 adds a touch of eleganceKOOBOOK 1Pcs Efficient Accurate Car Signal Simulators Multi Functional Diagnostic Tool for Fault Detection and Adjustable Voltage Testing Easy to Use Automotive Tester for Emission Diagnosis Usage Tips: 1. The instrument requires an external 12V 24V power supply to operate. 2. It's necessary to disconnect the original vehicle oxygen sensor signal line; otherwise, the signal from the original oxygen sensor and the S03 simulator will interfere with each