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Old 02-03-2015, 04:40 PM
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Join Date: Nov 2014
Location: Allentown, PA
Posts: 70
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O2 Sensor Question

Not many people I know would have a smile on their face after getting $3,000 worth of maintenance done to their x5. But yesterday I paid the bill and got to drive her for the first time since 1/10/15!!! Huge smile on my face. Pull out of the parking lot and the F'in check engine light comes on (in true race truck fashion). Two codes:

p0030 - Heater control circuit (bank 1, sensor 1)
p0134 - o2 sensor circuit no activity detected (bank 1, sensor 1)

So I'm guessing I need a new o2 sensor and I may as well do both of the precats right away (sitting at 97K).

Now my questions are:

Does anyone have a good DIY? Haven't gotten a chance to pick up a Bentley Manual yet.

Bank 1 refers to the right side of the engine, correct? Now is that the right side when I'm looking at the engine (aka drivers side) or right side when im sitting in the car (pass side). I had the motor mounts replaced so I'm wondering if something is pinched or didn't get reconnected? I get p0030 on every start up after clearing the code. P0134 seems more intermittent.
P0134 - 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)

Read more at: OBD-II Trouble Code: P0134 Oxygen 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
Copyright © OBD-Codes.com
P0134 - 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)

Read more at: OBD-II Trouble Code: P0134 Oxygen 02 Sensor Circuit No Activity Detected (Bank I Sensor 1)
Copyright © OBD-Codes.com
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