WebNov 28, 2016 · The post cat sensors are used to monitor the efficiency of your CAT. After the conversion, there is very little O2 left in the exhaust gas. So a faulty post o2 sensor … WebFind many great new & used options and get the best deals for BMW M3 M4 S55 Oxygen Sensor O2 Bank 2 Front Pre Cat F80 F82 F83 M2 Oem 2015-2024 at the best online …
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WebApr 10, 2024 · Oxygen O2 Sensor For BMW E38 E39 E46 E53 E83 X5 Z3 Z8 323CI Bosch 13477. $53.28. ... Inspected and tested all seemed fine. Bought the Botsch 02 sensors - pre cat installed them. My BMW passed smog instantly. I could have bought the cheaper pair sold on Amazon. But I’m glad I did not. X. ... Buy oem bosch o2 sensor for your BMW. It … WebMS45 to MS43 ECU Conversion. If your car is a 2001-2002 330i/330ci, this page will not apply to you. BMW used a Siemens engine computer, or engine control unit (ECU) to control the fuel injection system in the E46 model range. There were three versions for non-M cars: MS42 for 1999-2000 323i/328i, MS43 for 2001-2/2003* 325i/330i, and MS45 for 2 ... chainsaw possibly also large
BMW Lambda O2 Oxygen Sensor 11787544654 E60 525i 530i …
WebGenuine BMW pre-cat or post-cat O2 sensor for M52 and S52 engine applications. Price: $289.99. 313.85. ... Pre-Cat Oxygen Sensor, Bosch - E46 325/330, E60, X3 (11787523435) E46 325/330: 3/2003-2006. OEM Bosch bank 2 pre-cat O2 sensor. 24 month warranty. Price: $164.99. View Product. Pre-Cat Oxygen Sensor, Bosch - E9X 325/330, E9X M3, … WebFits MANY BMWs, see below list.This posting is for 4 sensors, 2 upstream and 2 downstream, genuine Bosch BMW sensors.Part numbers11781742050 … WebOct 16, 2016 · This method uses an air fuel ratio sensors pre-cat and standard O2 sensor post cat. The AFR sensors test for misfire detection, mixture variation among cylinders and exhaust temperature. The rear sensor checks average mixture, catalyst output temp, and for a few seconds when conditions are right monitors catalyst heath. happy 64 birthday