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P1133 Diagnostic Trouble Code Discussion for May 2010

Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching

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Trouble Ticket Help Requests for DTC P1133
Help Request Posted
2003 Pontiac Grand Prix GT 3.8L MIL Lamp on VIN: 1G2WP52K73
P1133: Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching. ... this Grans Prix that came to me on 5-09 at 97k miles with a converter plugged. We replaced converter with aftermarket. I have used these converters and have not had any problem with them. Car returned in 11-09 @102k miles with PO420 stored. Monitored O2 gr...
May 18, 2010
1999 Chevrolet Malibu LS 3.1L MIL Lamp on VIN: 1G1NE52J4X
P1133: Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching. Car originally came in last Fall with P1133. No problems, just light. Test drove, cleared, sent her home. About a month ago, car came back. Light on, same code, no issues felt driving, etc... Another worker in the shop pulled this ticket, scanned car, dunked a...
May 27, 2010