Bosch LSU 4.9 Wiring Diagram: Complete Guide and Tips. When it comes to wiring a Bosch LSU 4.9 oxygen sensor, having a proper diagram and understanding the connections is crucial. The Bosch LSU 4.9 is a popular wideband oxygen sensor used in many automotive applications, providing accurate and fast response for monitoring air-fuel ratios.. Sensor beside the OE Sensor and cut the Bosch Universal Oxygen Sensor wiring to the length of the OE Sensor. Proceed to Step 6. Step 5: Lay the OE Sensor beside the Bosch Universal Oxygen Sensor and cut the OE Sensor wires to the same length as the Bosch Universal Oxygen Sensor length. Cut the wire tie from the end of the Bosch Universal Oxygen.
Lay the OE Sensor beside the Bosch Universal Oxygen Sensor and cut the OE Sensor wires to the same length as the Bosch Universal Oxygen Sensor length. Cut the wire tie from the end of the Bosch Universal Oxygen Sensor wiring. Proceed to Step 6. Strip 3/8″ of wire insulation from all wire ends. Use proper tools to ensure stripping only the.. These brands provide both OEM and universal-fit O2 sensors, and the price varies primarily on whether or not they're upstream or downstream sensors, with the upstream sensor being more expensive. 1. Bosch Premium OE Fitment Oxygen Sensor. Bosch parts are almost universally excellent, and this goes for their lambda sensors as well.