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#1 (permalink) Old 07-17-2006, 09:42 PM
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Oxygen sensors? Help!

Hello there,

I have a 92 325i that runs really sluggish. The engine sounds like it's doing very well mechanically, but it holds back and has small explosions in the exhaust. If I only press the gas pedal slowly, it will be fine, but once I floor it it sounds very sick.. I bought the scan tool from Bavarian and it says oxygen sensor (code 46). I replaced the oxygen sensor yesterday (took me forever because it was stuck - any tricks on how to replace this easier are apreciated) and it didnt help at all. However, it makes sense that it is the oxygen sensors, because sometimes it will be fine for the first 10 seconds or so after I start it and according to the Bentley book, the oxygen sensors aren't active until the engine is warm. I also checked the oxygen sensor heater relay, and it's fine. Where do I go from here?
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#2 (permalink) Old 07-18-2006, 12:05 PM
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Have you ever changed the cat. converter? Those get clogged over time and won't run right. When you press on the gas, does it sound like it wants to run, but doesn't get up and go? Sounds like someone put a banana in your tail pipe?
Or does it just run rough?

1997 E36 M3 - running stocker style right now...
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#3 (permalink) Old 07-18-2006, 12:15 PM
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Try hitting the cat. and if you hear a rattle then it's time to replace them.

Bavauto has a tool (socket) to ease replacing the sensor for abot $19.
Also, I have heard some small autopart stores will let you borrow it!!

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