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      04-07-2013, 06:43 PM   #23
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Quote:
Originally Posted by Fen335i View Post
Damn, $115 for the same Bosch sensor I bought for $147. That's a heck of a price. Well, when the other side fails I guess I know where to buy it! I never thought of buying an O2 sensor on Amazon...I guess they pretty much carry everything now. ;-)
Seriously... hahahaha

I love Amazon. Prime all the way !
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      04-10-2013, 03:49 AM   #24
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they were $105 just a few days ago
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      04-10-2013, 06:01 AM   #25
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Had mine just replaced under warranty (before it's over in 2 weeks).

Symptoms were CEL which occurred 2 times under constant cruising @ 70 MPH with cruise control. Went away after 5 or 10 ignition cycles.
And when I would go WOT in 3rd at 2000rpm the car would in 80% of the cases not accelerate as fast as it could until it reached 3000rpm. This is gone now, but could also have to do with update from 170E to 240E.
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      04-20-2013, 02:14 AM   #26
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update: I replaced the sparks plugs and both pre-cat o2 sensors last week. When I cleared the fault code, I noticed another one: 27B1 secondary air system... Any insight on this?

I cleared them both, driven about 50miles and they haven't returned. The car definitely feels smoother at low-end likely due to the new spark plugs, but still a bit sluggish between 5-8k rpm.
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      11-18-2015, 09:23 PM   #27
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Hi guys, I'm resurrecting this thread. Can anyone confirm for sure that bank 2 is the drivers side sensors? I am going to try to post the picture of what I got when I checked my cars ECU... I will order this on amazon, and do it myself if it's easy enough. I have a floor Jack and two Jack stands and I can get more to do the job. I just want this cel to go away and don't like running my car with bad sensors.
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      11-18-2015, 09:24 PM   #28
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Trying again, forget it. Anyway it says 27C7, and 2727 both bank 2.
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