So long story short... My readiness for emission where not setting, it didn't matter what I did they would not set. I had no codes on the ECM. So I was really scratching my head about this one, everything seen to be working correct. But then I really looked hard and compared my readings to my wife's X3... I know not the Same engine. But I did notice that my O2 sensors were reading a bit slow, also I had a hesitation mid RPM range. So I purshased the sensor on page B for close to 400, page A wanted close to 600, so after I replace them I was driving a hole new X5...or it felt like that.


It felt like all the lost HP and TQ was back no weird hesitation mid range or strange engine pitch. Soo if your X5 seems tired and not torqui I would suggest O2 sensors. Mine where the OE sensors and at 129k they where defenetly tired. LoL

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5G Ford Ranger Lariat 2022

E36/7 Z3 97 1.9 New project

E53 X5 4.6is 02 OFF to Bring a trailer soon
Land Rover Disco 2 03 - sold
Kawasaki Z900B 17- sold
E53 X5 3.0 5M/T 01-sold-again
E53 X5 4.4 05-the beast a 4.8tu swap. at 150k -SOLD

E83 X3 3.0-the wife's - sold
R56 Mini Cooper S 07-sold
E36 M3 97 - sold
E36 M3 98-sold
E39 528i 00-sold
E30 318i 91-sold
E36 M3 95-sold

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