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Old 09-13-2010, 02:07 PM   #1
toeycrack
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Code - p2195

okay guys im throwing a Code, p2195.

i thought it was the rear o2 sensor, or is it. but when i went to a ford dealship to see if they had them in stock, they do. But when i said it was the rear o2, they said it is not called that for the rear.. the front are usally the o2 and the rear is cat monitor? well anyways... does anyone know which one i need to get?


also, i went to autozone and they said that i will have to replace both, but i doubt that... and was wondering if bosch is a good brand for o2? compared to the motorcraft one?


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Old 09-13-2010, 02:23 PM   #2
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Its a stuck lean signal on Bank 1 so it would be the front sensor. Yes the rear only monitors the cat.
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Old 09-13-2010, 10:35 PM   #3
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ok and thank you, getting it fixed tomorrow!!
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Old 09-14-2010, 06:05 AM   #4
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ok and thank you, getting it fixed tomorrow!!
I have the same code, LMK if that fixes the problem or not!
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Old 09-14-2010, 06:24 AM   #5
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Be sure to reset your ecu
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Old 09-14-2010, 06:37 AM   #6
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Be sure to reset your ecu
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mines been reset many times, and I actually got the code after doing an SVT header, cat, flex swap.
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Old 09-14-2010, 08:56 AM   #7
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I meant after the new o2. You should reset every time you change something
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Old 09-23-2010, 08:25 PM   #8
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i've replace the front o2 with a new one, and i reset the ecu by disconnecting the neg terminal for over 15 min. light is back... is it from me not using 93 octane? my tune is setup for that.
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Old 09-24-2010, 03:43 PM   #9
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i've replace the front o2 with a new one, and i reset the ecu by disconnecting the neg terminal for over 15 min. light is back... is it from me not using 93 octane? my tune is setup for that.
hmmm... hope it doesnt do the same when i change mine... is there a leak from the header to cat?
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Old 09-24-2010, 03:55 PM   #10
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As underoath said, always worth checking for other causes when a fault is indicated. It is not always the item that has failed, but something else is causing the fault. Any leaks in the exhaust from the cylinder head to the O2 sensor could give rise to a sensor fault indication. Check the wiring too.
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