Drivetrain Oxygen Sensor Plug Location

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Apr 4, 2007 | 08:22 AM

gnhovis

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From: Maryland, USA

Oxygen Sensor Plug Location

Where does the after-cat O2 sensor plug in? Do you get to it from below or from the engine compartment? I may have damaged the wire when I removed the exhaust and I want to check that it's still seated. Thanks.

Apr 4, 2007 | 09:08 AM

jgf

2nd Gear

Joined: Apr 2006

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R-53 Cooper S - Plugs into the driver's side rear of cat, wire's go into engine bay to thr right side of the header's. Easy to reach from below

Apr 4, 2007 | 11:52 AM

Greatbear

Moderator :: Performance Mods

Joined: Mar 2003

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From: A Den in Maryland

The post-cat sensor plugs into a connector under the car, partially hidden by the heat shield. The pre-cat sensor plugs into a connector near the left side (of the car) of the head, between the head and airbox.