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P0052 Diagnostic Trouble Code Discussion for June 2004

Air Fuel Sensor (Bank 2 Sensor 1) Heater Control Circuit High Voltage

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Trouble Ticket Help Requests for DTC P0052
Help Request Posted
1995 Cadillac DeVille 4.9L Excessive Emissions, Poor Idle Quality, Hesitation, Surge, Poor Fuel Economy VIN: 1G6KD52BXS
P0052: mem cal reset. Thank You in advance to all that reply. This caddy came in with a bad hesitation sometimes and running very rich. The o2 sensors were fixed rich and would not respond to propane or vacum leak. The injector on time at hot idle was about 5.3-6.0 ms. The LTFT was...
June 19, 2004