P1133 PONTIAC - HO2S Insufficient Switching Bank 1 Sensor 1
P1133 PONTIAC Possible Causes
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1
- Vacuum leak
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 harness is open or shorted
- Faulty Heated Oxygen Sensor (HO2S) Bank 1 Sensor 1 circuit poor electrical connection
How do I fix code P1133 PONTIAC
Check the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
Cost of diagnosing the P1133 PONTIAC code
Labor: 1.0The cost of diagnosing the P1133 PONTIAC code is 1.0 hour of labor. The auto repair labor rates vary widely across the country, and even within the same city. Most auto repairs shops charge between $75 and $150 per hour.
When is the P1133 PONTIAC code detected?If the Powertrain Control Module (PCM) determines that the front HO2S did not switch enough times, the PCM will set the P1133 code.
P1133 PONTIAC Possible Symptoms
- Engine Light ON (or Service Engine Soon Warning Light)
P1133 PONTIAC MeaningThe Powertrain Control Module (PCM) monitors the Heated Oxygen Sensor (HO2S) activity for 90 seconds after closed loop operation has begun. The PCM determines if the front HO2S is functioning properly by counting the number of HO2S-1 Lean/Rich (L/R) and Rich/Lean (R/L) switches.
P1133 PONTIAC More InformationNeed more information on how to fix the P1133 PONTIAC code?
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