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Thread: Heated Oxygen Sensor P1133
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08-16-2009, 06:15 AM #1
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- Aug 2009
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- long island
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red- 1999 pontiac trans am
QUESTION: Heated Oxygen Sensor P1133 OBD Code
Need some help guys...I recently put in Edelbrock headers and a new exhaust system for a 99 Pontiac TA. the check engine light came on, the OBD II code reads P1133 - heated oxygen sensor bank 1 (rear).
being it happened one day after installing the headers, what could it be? throttle body? mas air? need a little help here. just starting out. i don't just want to put a new sensor on, for it to happen again.
anyone got any ideas?
thanks,
ericLast edited by ericw; 08-16-2009 at 06:48 AM.
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08-16-2009, 09:35 AM #2
Im guessing you put on shorties, and kept the cats? Check your 02 wiring, ensure none of them are burnt or melted. Any exhaust leaks befor the 02's? Try swapping the sensors and see if the code follows, if it does then your sensor is shot if not then it may have just had a hiccup with the new exhaust.
2001 SS, Its not the car its the Driver that matters....
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08-17-2009, 02:50 AM #3
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- Aug 2009
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- long island
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red- 1999 pontiac trans am
thanx for the info. going 2 check it out 2day. ur absolutely right, shortys & kept the cats. changed the exhaust system as well at the same time.
thanx
eric
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08-17-2009, 04:55 AM #4
The O2 sensor has a heater element in it and they sometimes go bad. Generally, the heater wires are the same color and you simply check for continuity across the wires after unplugging the connector. If the sensor tests "open" and has no continuity then the heater element is bad. For more info, and a handy wire color code chart, check out: http://www.boschautoparts.com/NR/rdo...sorInstall.pdf
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