Oxygen sensor

Alpine · Aug 26th, 2023, 10:36

Hi all

I have fault code 0030, which is oxygen sensor bank 1 sensor 1. Is that the one under the car, near the cat? Is it easy for me to access?

downstream · Aug 26th, 2023, 12:49

I think there should be two oxygen sensors on your car, pre-cat and post-cat, in any case I would think that sensor 1 would be the one in front of the cat...

Easy enough to get to with the front on axle stands, if you don't mind crawling around on the floor... A crows foot lambda sensor socket makes removal and reinstalling a lot easier.

Aug 26th, 2023, 10:36	#1
Alpine Senior Member Last Online: Jun 9th, 2024 00:06 Join Date: Jan 2012 Location: Leeds	Oxygen sensor Hi all I have fault code 0030, which is oxygen sensor bank 1 sensor 1. Is that the one under the car, near the cat? Is it easy for me to access? __________________ Phil '98 V70 2.5T (manual '99MY)

Aug 26th, 2023, 12:49	#2
downstream Junior Member Last Online: Today 08:13 Join Date: Sep 2019 Location: Carlisle	I think there should be two oxygen sensors on your car, pre-cat and post-cat, in any case I would think that sensor 1 would be the one in front of the cat... Easy enough to get to with the front on axle stands, if you don't mind crawling around on the floor... A crows foot lambda sensor socket makes removal and reinstalling a lot easier.

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