Bosch Lsu 4 2 5 Wire Wideband O2 Sensor

The latest generation widebands are compatible with both the bosch lsu 4 2 and 4 9 but the sensor connector is different on each one.

Bosch lsu 4 2 5 wire wideband o2 sensor.

Wideband air fuel sensors perform the same function as a regular o2 sensor but they precisely measure the amount oxygen in the exhaust rather than just switching between rich too much fuel not enough oxygen and lean too much oxygen not enough fuel. The bosch wideband has 5 wires on a 6 plug connector. While the fix and testing wo. Air fuel ratio oxygen sensor lsu 4 9 5 wire wide band replacement afr o2 sensor replaces bosch lsu 4 9 17025 and 0258017025 compatible with aem 30 4110 wideband kit 0258017025 the picture color 3 4 out of 5 stars 12.

Buy 0258007090 o2 oxygen sensor lsu 4 2 5 wire wideband upstream sensor 1 fit for a4 a8 quattro tt touareg passat golf beetle 1 8l 2 0l 2002 2007 0258007057 17014. Bosch number is 0 258 006 066. Reference the sensor sensor cable identifier image below. Bosch lambda sensor universal lsu 4 2 wideband oxygen sensor modern emission regulations have forced tighter control of engine management systems throughout all engine speed and load ranges.

This is borne out in the slight discrepancies between my results and what is typically expected. Bosch lsu 4 2 5 wire wide band o2 sensor. 6066 is an lsu 4 0 sensor. Replacement sensor for the lm 1 and lc 1.

These sensors have a laser etched calibrated resistor in the sensor s connector body. I am wiring a bosch lsu 4 2 wideband to an aem infinity 508. The traditional oxygen sensor could accurately detect the stoichiometric air fuel ratio at 14 7 1 lambda 1 0 with an output of approximately 450 mv. Bosch lsu 4 2 wideband o2 sensor testing 2001 skoda octavia 1 6 avu.

5 wire o2 sensor diagram e30 wiring vs 1431 wideband 4 lsu connectors and library xb 1235 innovate as well bosch 2 wx 5621 for oxygen free broadband raspberry pi a lambda controller display problems audiforums com 5 wire o2 sensor diagram e30 wiring vs 1431 wideband 5 wire 4 o2 diagram lsu connectors and wiring 5 wire read more. But there are 6 wires that go to the ecu side of the plug and aem says it has to be wired that way. First a disclaimerthe reader should be aware that i am not a professional and my knowledge of wideband sensors is limited. Aem s bosch 4 2lsu wideband uego o2 replacement sensor kit includes only the sensor with attached cable and male connector and is intended to replace an existing mounted wideband sensor used with aem wideband air fuel uego controllers.

Can anyone explain whats happening inside the plug that requires this extra wire. 17025 is an lsu 4 9 sensor. Note that the green pin is from the rcal part inside the sensor connector housing and thus there s no green wire to the sensor assembly represent by the blue area to the right.