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P1133 fuel and air mixture on 2002 grand am - 2002 Pontiac Grand Am

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Oxyen sensor B1

Posted on Mar 15, 2011

  • Mark Brown
    Mark Brown Mar 15, 2011

    02 sensor replace 1 by catalytic converter



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Where is the fuel air metering on a 1998 gmc yukon..p1133

P1133 is B1S1 oxygen sensor not switching properly. Likely due to failed sensor. Could be due to lack of fuel (filter, pump,) or bad MAF sensor, even leaking intake manifold

Apr 01, 2015 | 1998 GMC Yukon

1 Answer

What is code p017.2 for a 2002 dodge caravan

This is the closest I've come to the code you are looking for. I searched all Dodge codes and didn't see any with a "point 2" but I found code P0172. According to your fuel mixture is probably too rich. This is what the site had to say:

Possible Causes for this Code:
- Faulty front heated oxygen sensor
- Ignition misfiring
- Faulty fuel injectors
- Exhaust gas leaks
- Incorrect fuel pressure
- Faulty Mass Air Flow (MAF) sensor
Read more:

This code is detected when:
- Fuel injection system does not operate properly.
- The amount of mixture ratio compensation is too large. (The mixture ratio is too rich.)

Read more:

Possible symptoms:
- Engine Light ON (or Service Engine Soon Warning Light)
- Excessive Fuel Consumption
Read more:

P0172 Dodge Code Description:

With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture ratio can be brought closely to the theoretical mixture ratio based on the mixture ratio feedback signal from the heated oxygen sensors 1. The Engine Control Module (ECM) calculates the necessary compensation to correct the offset between the actual and the theoretical ratios.
In case the amount of the compensation value is extremely large (The actual mixture ratio is too lean.), the ECM judges the condition as the fuel injection system malfunction and light up the MIL (2 trip detection logic).
Read more:

Hope this helps!

Jun 27, 2014 | 1999 Dodge Grand Caravan

1 Answer

Car only starts when hold wide open then runs ruff any one knows whats up 02 grand am 2.2

IAT intake air temp and the coolant temp sensor both regulate the fuel mixture and if either is bad it will not run smooth and will require holding the gas to get it to start.

Oct 06, 2012 | 2002 Pontiac Grand Am

1 Answer

P1133 on a 2002 saturn sc2 1.9L

Hi thee:
Check this 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

Test wires and harnesses. Hope helps.

Sep 01, 2012 | Saturn Cars & Trucks

1 Answer

Check engine light code p1133 on a chevy colorado 2005

The code means the ECM doesn't like the exhaust mixture coming thru the cat.
It could mean one of the O2 sensors has failed, but could also be caused by a list of other problems with the fuel-air mixture.
If the ECM can't adjust the fuel trim to keep in the range, the cat could be damaged and fail inspection, so the ECM turns the light on and goes into safe mode until the problem is fixed.

Jun 24, 2012 | Chevrolet Colorado Cars & Trucks

1 Answer

Malibu 1999 p1133 code

p1133 is manufacturer control fuel air metering, this means that it is a bad 02 sensor. the primary oxygen sensor in the exhaust BEFORE the catalytic converter.

Jul 05, 2010 | 1999 Chevrolet Malibu

1 Answer

Showing check engine - then the code reader is p1133 and p0171

P1135 Air-Fuel Sensor Heater Circuit Response.
the air fuel sensor malfunction is the main problem and thats causing the code p0171.
Hard to start o long cranking time to starter is gona be the first symtoms.
replace upstream. (the air fuel Sensor and the oxygen sensor is the same)

Mar 24, 2010 | 1998 Toyota Camry

1 Answer

2004 GMC Envoy check engine light remains illuminated. Diagnostics revealed codes: P1133 and P0128. P1133 points to a heated oxygen sensor and P0128 indicates a possible defective thermostat. The O2 sensor...

Leave 02 sensor alone ,it is doing it's job . It is heated up because of lean fuel mixture due to incorrect engine temp.,replace thermostat before looking further.

Jan 20, 2010 | 2004 GMC Envoy

1 Answer

The car wont start it tries but no luck the code is p1133

Trouble Code: P1133 (3.4L V6 VIN E Auto)
HO2S-11 (Bank 1 Sensor 1) Insufficient Switching Print this code dataprint_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

Oct 15, 2009 | 2003 Oldsmobile Alero

1 Answer

1998 pontiac grand prix gt service engine soon light just came on. Auto Zone did a test and came back with a code. It said ''Fuel Air Metering P1133''. Can you tell me what this is?

P1133 HO2S Insufficient Switching Sensor 1




Jul 10, 2009 | 1998 Pontiac Grand Prix

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