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What does P0171B and P1133 mean? - Envoy XL GMC Cars & Trucks

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P0171 - Bank 1 system too lean.

P1133 - O2S insufficient switching bank 1 sensor 1

Posted on Oct 22, 2013

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Posted on Jan 02, 2017

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dttech
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SOURCE: P0171B

It means that your engine is running lean - not getting enough fuel for the amount of air that the engine is receiving. Because your maxima is equipped with a V-6 engine, whatever the problem, it is affecting only bank #1. Bank #1 is always the side of the engine where cylinder #1 is located, or in your case, the left side of the engine as it is viewed while facing the crankshaft end of the engine.
(on a 4 cylinder engine, there is only one bank and it is always referred to as Bank #1)
There are several things that can cause a lean condition including vacuum leaks, a malfunctioning Evaporative Emissions system, a misfiring cylinder (due to bad plugs, bad injectors, or an intake or head gasket leak.), a malfunctioning Mass Airflow sensor (MAF) or Manifold Absolute Pressure sensor (MAP) or even a bad Oxygen sensor (O2s) (Nissan sometimes calls an O2s an "Air-Fuel Ratio Sensor") It is even possible for a leaking vacuum brake booster to cause a lean code.
If there are any other malfunction codes present, it may help to pinpiont the cause of the lean code. (Like a P0301 "cylinder#1 misfire detected", in which case, you would address the misfire code first.)
Certain problems, like a leaking brake booster or a bad MAF will usually set lean codes for BOTH banks.
If the P0171 is the ONLY code present, the most likely cause is a bad O2s, but I recommend some diagnostic testing to prove it before spending the mega-bucks that Nissan gets for their O2 sensors.

Posted on Oct 10, 2009

steve_e_uk
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SOURCE: What does code P1133 mean: 98 Saturn SW2?

hi this site will have your answer..hope this helps


http://www.saturnfans.com/forums/showthread.php?t=136348

just click link

Posted on Feb 13, 2010

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What does P0171B and P1133 mean I have a GMC Envoy 2004 please help


P0171 - Bank 1 system too lean.

P1133 - O2S insufficient switching bank 1 sensor 1

Oct 22, 2013 | GMC Envoy XL Cars & Trucks

1 Answer

I'M having a P0171B and a P1133 on my 2004 gmc


P0171 - Bank 1 system too lean.

P1133 - O2S insufficient switching bank 1 sensor 1

go to autozone and have them read your vehicles computer ,,,or take your battery cables off for 10 minutes then put them on and see if it resets itself ...most likely a code misread on your vehicle

Oct 22, 2013 | GMC 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

2 Answers

Computer analysis showed these codes... P0330 P1133 P1135 P1346 P1349 P1351 P1354. can anyone tell me what each of these mean?


P0330 Knock Sensor 2 Circuit (Bank 2)
P1133 Air/Fuel Ratio Sensor Circuit Response Malfunction (Bank 1, Sensor 1)
P1135 Air/Fuel Ratio Sensor Heater Circuit Malfunction (Bank 1, Sensor 1)
P1346 VVT Sensor Range/Performance Problem (Bank 1)
P1349 VVT System Malfunction (Bank 1)
P1351 Variable Valve Timing / CMP Sensor Range / Performance
P1354 Variable Valve Timing System Fault

NOTE:Variable Valve Timing (VVT) sensor is also known as camshaft position sensor.
The Variable Valve Timing (VVT) system controls intake valve timing in response to driving conditions.

Possible causes are:
  1. Incorrect valve timing P1346, P1349, P1351 & P1354
  2. Faulty oil control valve P1346, P1349, P1351 & P1354
  3. Faulty VVT controller assembly P1346, P1349, P1351 & P1354
  4. Faulty ECM All Codes
  5. Jumped timing belt All Codes
  6. Faulty Camshaft Position Sensor P1346, P1349, P1351 & P1354
  7. Faulty O2 Sensor (Bank 1, Sensor 1) P1133 & P1135

Apr 22, 2011 | 1999 Lexus ES 300

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

What does code P1133 mean: 98 Saturn SW2?


hi this site will have your answer..hope this helps


http://www.saturnfans.com/forums/showthread.php?t=136348

just click link

Feb 13, 2010 | 2000 Saturn SW2

1 Answer

What is code p1133 and the battery light is on


P1133 is the code that tells you that your HO2S (Heated oxygen sensor) is not performing correctly. This can mean that sensor has failed to function correctly at least twice in a row and so the computer will store the data that occured the first time it failed and turn on the Check engine lite. Most likely you need a new Heated oxygen sensor.

Oct 08, 2009 | 1997 Saturn SL

1 Answer

Code po300 comes on when you drive p1133,po171


code P0300 means random cylinder misfiring, have u checked spark plugs and cables

Jul 24, 2009 | Chevrolet Blazer Cars & Trucks

1 Answer

1998 GMC Sonoma threw code P1133 02S 1/1


P1133 - Heated Oxygen Sensor (HO2S) Insufficient Switching Bank 1 Sensor 1
I would have the repair shop see if they either damaged or left disconnected the oxygen sensor for engine cylinder bank one upstream sensor, this sensor would have been disconnected if the oil pan was removed.

Apr 20, 2009 | 1998 GMC Sonoma

1 Answer

Diagnostic codes 97 tahoe 4d 4wd 5.7


p1460 cooling fan circuit,p1153 ho2s insufficient switching bank 2 sensor 1,p1133 insuf. swit. sen. 1 or bank 1 sen. 1,p420 catalyst system efficiency below threshold bank 1,p152 o2sen. circuit high volt. bank 2 sen.1

Feb 24, 2009 | 1997 Chevrolet Tahoe

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