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P0153 Diagnostic Trouble Code Discussion for December 2004

Heated Oxygen Sensor (Bank 2 Sensor 1) Slow Response

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Trouble Ticket Help Requests for DTC P0153
Help Request Posted
1997 Ford Explorer Eddie Bauer 4.0L Poor Idle Quality VIN: 1FMDU32EXV
P0153: Front O2 Sensor. ... lower idle speed than I care for. It idles at about 650 with a 29% iac duty cycle. Also at idle the long term fuel trims are 10% for bank 1 and 19% for bank 2. At 1500 rpm the long term trims are -4% for bank 1 and +2% for bank 2. It runs well at higher sp...
December 11, 2004