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P1133 Diagnostic Trouble Code Discussion for October 2006

Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching

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Trouble Ticket Help Requests for DTC P1133
Help Request Posted
1998 Buick LeSabre Custom 3.8L MIL Lamp on VIN: 1G4HP52K8W
P1133: Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching. ... some help with this one. it had a new engine installed a year ago. it came back with mil on with codes po306 & p1133.found a bad plug wire and checked the o2's, graphed while driving, switched from .200-.800.cleared codes, drove for 2 days no codes.cus...
October 10, 2006
2004 Chevrolet Trailblazer EXT LT 4.2L Poor Fuel Economy, MIL Lamp on VIN: 1GNET16S94
P1133: insufficient switching. Vehicle has been here 3 times for same codes. First time we sent customer to Dealer for reprogram. Replaced [...] next two times. Fuel pressure is 47 psi(ok per shopkey). Was told by OEM parts dept that this eng does not have a PCV valve. Is anyone else having...
October 17, 2006
1998 Chevrolet S10 LS 2.2L MIL Lamp on VIN: 1GCCS1941W
P1133: Heated Oxygen Sensor (Bank 1 Sensor 1) Insufficient Switching. ... sensor switch test. Looking at the O2 sensor on a Labscope the voltage readings go below .1v and above .9v and has a switch ratio of 3Hz at 2000 RPM's. During the testing of this truck the switch counter never came off of 1. After 15 minutes of running at ...
October 19, 2006
2000 Daewoo Nubira SE 2.0L MIL Lamp on VIN: KLAJC52Z8Y
P1133: o2 not switching frequently enough. this awesome car came to us with p1133 in memory. graphing on a road test showed the waveform gravitating close to bias voltage at a steady cruise. the sensor was replaced (bosch), and the same characteristics remain. on heavy accel or decell, the voltages wil...
October 26, 2006
1999 Lexus ES300 3.0L Poor Idle Quality, Hesitation, MIL Lamp on VIN: JT8BF28G5X
P1133: Air Fuel Ratio Sensor (Bank 1 Sensor 1) Slow Response. After the car has been driven for 3 to 6 miles, on slight accel. it hesitates. A few times at a stoplight at idle it starts to run rough also. Then the check engine lite comes on and p1354 sets and also the trac off lite comes on, which I think is normal for t...
October 31, 2006