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P0153 Diagnostic Trouble Code Discussion for September 2010

Heated Oxygen Sensor (Bank 2 Sensor 1) Slow Response

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Trouble Ticket Help Requests for DTC P0153
Help Request Posted
1998 Mercury Mystique LS 2.5L Surge VIN: 1MELM66L2W
P0153: Ho2s21 circuit slow response. Customer came back 2 days later with complaints that the car has a high idle. We checked the car with the customer here, unplugged the IAC and the problem went right away. replaced Iac (ford part) and problem persisted. Symptoms only occur in drive, not in par...
September 27, 2010