o2 sensor
4th Gear Member
Joined: May 2007
Posts: 1,691
From: Pacific Northwest, USA
I had an o2 sensor go bad and replaced it with a bosch from Napa(about half the price of fords), cant remember the code(17100 maybe) but the text was "bank one lean" now my sensors read unready at the DEQ nad its been driven plenty......
5th Gear Member
Joined: Dec 2006
Posts: 4,552
From: Redding, CA
If you want to diagnosis if the sensor is bad you can swap them front to back or side to side. This means you unscrew the O2 sensor, unplug the harness and put it in a different location. If you get the same code with a different sensor then it is not the sensor most likely and is going to be tune related.
Almost all after market tunes have the rear O2 sensors turned off.
Almost all after market tunes have the rear O2 sensors turned off.
Thread Starter
Joined: Feb 2009
Posts: 11
From: ky
6th Gear Member
Joined: Sep 2006
Posts: 11,278
From: Gainesville, FL
If you want to diagnosis if the sensor is bad you can swap them front to back or side to side. This means you unscrew the O2 sensor, unplug the harness and put it in a different location. If you get the same code with a different sensor then it is not the sensor most likely and is going to be tune related.
Almost all after market tunes have the rear O2 sensors turned off.
Almost all after market tunes have the rear O2 sensors turned off.
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