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Posted on Oct 15, 2009
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The car wont start it tries but no luck the code is p1133

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Greg Bernett

Greg Bernett

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  • Oldsmobile Master 2,993 Answers
  • Posted on Oct 15, 2009
Greg Bernett
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Trouble Code: P1133 (3.4L V6 VIN E Auto)
HO2S-11 (Bank 1 Sensor 1) Insufficient Switching Print this code datathe car wont start it tries but no luck the code - print_icon_codes.gif Number of Trips to Set Code: 2
OBD II Monitor Type: CCM Details
Indicators: MIL Details

Trouble Code Conditions:
DTC P0105-P0108, P0112-P0118, P0122, P0123, P0171, P0201-P0204, P0300-P0304, P0335, P0440-P0446, P0506, P0507, P0601, P0602 and P1441 are not set, engine speed from 1600-2450, ECT sensor over 158ºF, TP angle from 9-18%, Purge command over 36%, Purge Learn Memory over 0.86, fuel level over 10%, and the PCM detected the HO2S signal voltage switched from rich-lean or lean-rich less than 20 times in a 100 ms monitoring period.

Possible Causes:
  • Air leaks present in the exhaust manifold or the exhaust pipes
  • Fuel pressure is too high (i.e., causing a rich air fuel mixture)
  • HO2S may be contaminated (due to improper fuel or silicone)
  • HO2S signal high or low reference circuit has high resistance
  • HO2S heater element has failed, or the heater circuit is open
  • PCM has failed

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Tester code p1133 s10 1998 2.2 wont start turns over tries to start but just happen all of a sudden. went in a store and came out wont start
P1133 - HO2S Insufficient Switching Sensor 1

This fault code will never cause a no start, are you sure the battery didn't play up on you? Have them test it with a load tester.
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I was getting a p0420 code on my 2001 alero and now when I reset the light I am getting a p1133 code. I did put gas treatment into the full tank of gas and then the p1133 code came on. any suggestion on...
You never replaced the exhaust converter,ruined by the
coolant--- PO420

The P1133 is probably an O2 Sensor also ruined
I would replace them all.

Who ever did the head gasket should have done
all that

Don't waste your money on anything that goes
into a fuel tank,not necessary,nor does it fix anything
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Dec 20, 2010 • Oldsmobile Alero Cars & Trucks
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Showing check engine - then the code reader is p1133 and p0171
miles...?
P1135 Air-Fuel Sensor Heater Circuit Response.
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replace upstream. (the air fuel Sensor and the oxygen sensor is the same)
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Codes p1153 -p1140 -p1133-p0174
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P0140 Basically this means the an O2 sensor in Bank 1 detected a lean condition, same as mentioned above. Bank 1 is the side where cylinder #1 is.
In the vast majority of cases, simply cleaning the MAF sensor does the trick. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling.
P1133 and P1153 indicate that the HO25 Sensor has gone bad. There the O2 sensor to the left and right bank at the exhaust manifold. When the engine first start's the PCM runs on a open loop and ignores the O2 readings till it reaches it's operating temperature. Once the operating temperature has been reached the diagnostic will only run once per ignition cycle and if the PCM detects a lesser then specified value, a DTC of P1133 or P1153 will come up.
Once the problem has been repaired, after 3 start cycle will reset the MIL light. If the O2 is just dirty and slow to heat up try cycling the ignition start 3 times and the light should go off if the O2 sensor does not fail.
Try cleaning the MAF first and see if the light comes off after a few ignition cycle, If the service light is still on you can always have Auto Zone clear the DTC codes and see if it comes back which then check the left and right bank wire harness to the O2 sensors. 
Good luck and hope this helps, keep me posted.
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Code p1133
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more than likely you have a bad oxygen sensor...the primary oxygen sensor in the exhaust BEFORE the catalytic converter.

Thanks for using FixYa - a FixYa rating is appreciated for taking the time to answer your FREE question.

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Mar 30, 2009 • 1997 Chevrolet Cavalier
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Code: P1133
P1133 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor
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PLEASE RATE THIS INFO.
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Tester code p1133 s10 1998 2.2 wont start turns over tries to start but just happen all of a sudden. went in a store and came out wont start

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