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Thread: P0041 and P0123
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Old 12-04-2012, 11:54 AM   #1
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What I Drive: 2002 ford focus

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P0041 and P0123

My girlfriends car is throwing these two codes.

Check Engine Light Code P0041

Downstream O2 Sensors Swapped Bank To Bank

P0123 Code - Throttle Position Sensor/Switch A Circuit High Input

It's a stock 02 Focus, SPI engine, 5 speed manual. 151,xxx miles

It seems to run ok, minus some vibrations (mounts are new) and the speedometer sometimes decides to quit.

Any idea what could cause these codes, especially P0041? I can't find much info on it. I have never touched the oxygen sensor wiring and it didn't used to have this code.

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