Question about 1995 Lincoln Town Car

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Not passing smog check

Where are the bank 1 & bank 2 sensors located on a 2003 lincon navigator

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  • Anonymous Mar 16, 2014

    bank 2 sensor 1 location

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Bank 1 is pass/side exhaustpipe/converter bank 2 is on the driverside,this car has two converters, so you have 4 oxygen sensors, one before and one after the converter on each side, so bank 1 sensor1 is pass/side before the converter, bank 1 sensor 2 is pass/side after the converter, then bank 2 sensor1 is driverside before the converter, before means starting at motor, then bank 2 sensor 2 is driverside after the converter, heres a diagram to help, i hope this is helpful.Not passing smog check - a9203dd.jpg33c9cf6.jpg

Posted on Feb 06, 2010

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  • Master
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There are 4 oxygen sensors. bank one is the right (passenger side) bank 2 is the drivers side. The front sensors are sensor 1 and the rears are sensor 2. So if it needs bank 1 sensor 2 that would be the right sensor, behind the cat converter. Bank 1 sensor 1 is in front of the converter. Be sure thats what you need from the smog shop, do not take advice from a auto parts store IE Ottozoo, they tell everbody they need oxygen sensors.

Posted on Feb 06, 2010

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My 2003 kia sedona won't pass emissions the codes are p0320 p0431. Help please


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