Bosch Lsu 4 2 5 Wire Wideband O2 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.

Bosch lsu 4 2 5 wire wideband o2 sensor.

Bosch lsu 4 2 wideband o2 sensor testing 2001 skoda octavia 1 6 avu. I am wiring a bosch lsu 4 2 wideband to an aem infinity 508. 17025 is an lsu 4 9 sensor. These sensors have a laser etched calibrated resistor in the sensor s connector body.

First a disclaimerthe reader should be aware that i am not a professional and my knowledge of wideband sensors is limited. Premium wideband a f o2 oxygen sensors. Controllers must be recalibrated if changing between lsu 4 0 and 4 2 sensors. Can anyone explain whats happening inside the plug that requires this extra wire.

Reference the sensor sensor cable identifier image below. 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. 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. The bosch wideband has 5 wires on a 6 plug connector.

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. 6066 is an lsu 4 0 sensor. This is borne out in the slight discrepancies between my results and what is typically expected. 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.

While the fix and testing wo. Bosch number is 0 258 006 066. Bosch lsu 4 2 5 wire wide band o2 sensor. 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.

But there are 6 wires that go to the ecu side of the plug and aem says it has to be wired that way. 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. 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.