Question about 1996 Chevrolet Cavalier

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96 cavalier obd codes p0171 p0131 p1133 replaced upstream o2 sensor still getting codes

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  • Bruce Bateman Jul 21, 2009

    i cleared the codes but they came back i have cleared them twice.

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If you replaced the sensors, you have to clear the codes with a obd2 scantool, otherwise its still gonna show a fault.

Posted on Jul 21, 2009

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I replaced the ignition coil,fuel filter and oxygen sensors on my 2001 daewoo lanos..i am still having problems with the car not wanting to go up hills. when i drive the car on flat surfaces it runs okay.....


You use Google for any codes you get


TYPE:: OBD Codes PO303,PO171 etc

You have either replaced a good coil or you have more than one bad one

The fact you got a 303 doesn't mean #3 cylinder has a bad coil
but most likely it does

The 171 is more than likely unrelated & failed oxygen sensor

The O2 Sensors should be replaced at 100,000 miles on all vehicles ( just the front upstream ones)

Aug 24, 2013 | 2001 Daewoo Lanos

2 Answers

I have a 2000 chevy suburban with codes p1133 and p0131 what is the pooblem


P1133 indicates heated oxygen sensor insufficient switching bank #1 sensor #1. P0131 indicates voltage from that sensor is staying low more than 2 minutes. That sensor could be bad or it could indicate a rich condition.

May 10, 2011 | Chevrolet Suburban 1500 Cars & Trucks

2 Answers

Hi, I have a 1999 Saturn SC2 and my service engine light came on. I did a diagnostic on it and the code showed P1133. The guy at the auto shop told me it's an oxygen sensor, but didn't know if it was the...


First, I wouldn't let that guy work on your car. P1133 is "O2 Sensor Slow Response - Sensor 1" Anybody that has been in the auto repair business for more than a week should know that Sensor 1 is ALLWAYS the FRONT sensor.

Note: O2 sensor codes do not necessarily mean that an O2 sensor needs to be replaced. Most O2 Sensor codes are caused by something other than the O2 Sensor itself. (there are several different possible O2 Sensor codes for your car. P0131, P0132, P0133, P0134, P0138, P0171, P0172, P1133, P1134)

The most likely cause of DTC (Diagnostic TroubleCode) P1133 is contamination of the O2 Sensor. Replacing a contaminated O2 Sensor without repairing the source of the contamination will only result in a repeat repair. It could be caused by bad fuel, improper use of RTV sealant, engine oil or engine coolant. I have seen this caused many times by engine oil leaks that run down the exhaust and clog the holes in the side of the sensor shield. (The sensor must "breathe" to work properly)

Then on the other hand, if your vehicle has a lot of miles on it, the sensor could be just chemically worn out. In any case, the FRONT sensor is the one that is setting the code.

Jan 05, 2011 | 1999 Saturn SC

1 Answer

2002 Buick Lesabre codes P0131, P0171, and P1133.


Sounds like you just need to replace the one or two 02 sensors on bank 1.If you have over 100,000 miles the 02 sensos are realy to be replaced just as spark plugs and air filteres. If you wait to long to replace them you take a chance of them not comming out and then when they do go bad you will need to replace the exhaust as well.Hope this helps and good luck.

May 16, 2010 | 2002 Buick LeSabre

1 Answer

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


miles...?
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

2 Answers

Troubleshooting codes 1998 chevy truck S10 pick up were to find parts on truck ; codes p0171,p0401 ,p0452,p0131


p0171-System Adaptive Fuel Too Lean

p0401-EGR

p0452-EVAP Fuel Tank Pressure Sensor Low Input

p0131-Upstream Heated 02 Sensor Circuit

Hope That Helps.

Jan 15, 2010 | 1998 Chevrolet S-10 Pickup

2 Answers

98 chevy s-10 codes p0131, p0171, and p1133


Your O2 sensor is starting to go bad .recomend replacement before it gets worse

Sep 24, 2009 | 2004 Chevrolet Silverado 1500 Crew Cab

3 Answers

Codes 1133-0131-0171-0300


p1133 - o2 sensor, Insufficiant Switching, Bank 1 Sensor 1.
p0131 - o2 sensor circuit, low voltage, bank 1 sensor 1
p0171 - Lean condition, Bank 1
p0300 - Random Misfire

I would be looking at the front passenger side oxygen sensor for issues. It may be bad, it may not be plugged in, bad wiring at harness.

The random misfire may be symptomatic of the o2 sensor problem.

Mar 17, 2009 | 2002 Chevrolet Silverado 1500

1 Answer

Engine codes p1133 p0171 p0507 p0131 all at once


Per your description, it sounds like you have a vacuum leak.
Check all vacuum hoses at the engine, make sure no hoses are disconnected, cracked or damaged.
Disconnect each hose at the source on the engine and see if the engine idle stabilizes.
Let me know what you find and we can go from there.
Regards.

Mar 10, 2009 | 2002 Pontiac Sunfire

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