Question about Cars & Trucks
Ck for a vac leak first. Have the readings scanned to see if the sensors are doing their job & there s no other cause. To get to the conn, start at the sensor & trace the wire back to the connection. The u can do a direct test of the sensor. u can pull a vac hose on bank 1, get a propane torch & let in some propane & see if the sensor reacts. Clear the codes & see if they return. After all is said & done U may just need the sensor?! Good luck
Posted on Dec 17, 2016
The O2 sensor might need to be replaced or might not - ideally the next stage in diagnosis would be to test it to ensure the internal heating element is working and then by using a sensor simulator and tester.
This step is desirable because the sensor might be telling the truth and the lean condition is caused by fuelling problems.
Practically speaking, if the existing sensor has covered a few years and more than fifty or sixty thousand miles it could be a good idea to take the opportunity to change it regardless. This is advice from NGK, even if it eventually proves not to be the fault it has longer term economic and reliability benefits.
Reaching the connector is another story...
Follow the cable back from the sensor and do what you have to, remove or dismantle what you have to, to reach the connector. Stand on your head if need be...
Car designers and manufacturers seem to want people to suffer...
Posted on Dec 17, 2016
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Posted on Jan 02, 2017
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