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P0140 Diagnostic Trouble Code Discussion for January 2008

Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity

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Trouble Ticket Help Requests for DTC P0140
Help Request Posted
2001 Infiniti I30 3.0L MIL Lamp on VIN: JNKCA31A91
P0140: Heated Oxygen Sensor (Bank 1 Sensor 2) Insufficient Activity. got this infiniti with rear o2 sensor codes for high voltage.found tsb for the problem but the ecm # dosent match so here i am. checked the data from the ecu this morning on both rear o2 sensors and when cold after start up the right rear sensor was reading 2....
January 10, 2008
1999 Volkswagen Golf GTI 2.0L MIL Lamp on VIN: WVWDA31J6X
P0140: 02 b1s2 no activity. Has codes p0140 p0141 & p1128. Car has had light on for a while and not sure when each code set. Secondary 02 is stuck at .450 volts in closed loop at all rpms including snap throttle. Maf sensor at .298gs @ idle. leaning to replacing MAF and Both 02's, Bu...
January 24, 2008