Question about Cars & Trucks
What does check engine code PO155 mean ?
Posted by Anonymous on
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Posted on Jan 02, 2017
P0155 is o2 sensor heater circuit malfunction bank 2 sensor 1 it is the o2 sensor circuit in front of the cat converter the o2 sensors are located mounted to the exhaust pipe in front and behind the catylic converter the problem is in the circuit [wiring or sensor itself] check wiring and repair if necessary if the short or open circuit is the sensor need to replace sensor +++ P0161 is 02 sensor heater circuit malfunction BANK 2 SENSOR 2 ++++++ this is the sensor behind the cat converter
Posted on Feb 23, 2010
SOURCE: i ahve a engine light
P0135 = O2 Sensor Heater Circuit (Bank 1 Sensor 1)
Oxygen sensor heater element malfunction.
P0155 = O2 Sensor Heater Circuit (Bank 2 Sensor 1)
Oxygen sensor heater element malfunction
Both up stream (before the cat) 02 sensors are internally broken. The Heater Circuit is internal and can not be repaired. You need to get them replaced.
Let me know,if needed further assistance.
Hope i helped you.
Thanks for using ' Fixya ' and have a nice day!!
Posted on Nov 29, 2010
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