Question about 2001 Lincoln LS

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Im not getting any power to bank 2 sensor 2 on my 2001 lincoln ls. the code is po156 please help

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You need to check the connector or plug on the O2 Sensor- for moisture etc.
Also the heater in the sensor may have just failed.
Make sure the sensor did not come loose,in the exhaust pipe. Mine, on my 2004 did,or was that way from the factory.
Also remove and clean you MAF Sensor,in the intake ducting,between the air filter and throttle body. Use CRC Mass Air Flow Cleaner --No. 05110
If you don't have a scanner,about all you can do is change the sensor. I do not like throwing parts at things. Always test,then replace.

Posted on May 03, 2010


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Aug 04, 2011 | 2002 Lincoln LS

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I got a 2002 lincoln ls. The ac is not working im getting codes from self dianotics test 1263,1264,1242,1251,1265, i know what the codes mean but do not know where to start far as fixing my problem. what...

The codes that you have there means:

P1242 - Sensor power supply high input
P1251 - Air mixture solenoid circuit malfunction
P1263 - Cylinder #3 high to low side short
P1264 - Cylinder #4 high to low side short
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In the next link, you can find Lincoln LS 2000-2005 Connector Pin Identification

Hope this helps.

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