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I have hard starting sometimes but when it starts it runs great code is p-2196 02 sensor signal stuck rich bank 1 sensor 1

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P2196 O2 sensor signal biased/stuck rich- Bank1, Sensor 1

In this case
change the O2 sensor 2 , coil-packs and the TPS. Bank 1 is the passenger side
bank 2 is the driver side
Sensor 1 is the sensor before the converter nearest the engine.

Check the injectors.Most probably they are cracked out and leaking. injectors are leaking or stuck open..
Get it seen about quick though, sticking fuel injectors can kill the catalytic converter.also get the vacuum leak checked.This are the common causes of this error code.checking and replacing the faulty will resolve the problem.
Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Jul 30, 2010

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My 2008 Silverado is throwing codes p2271,p2272 and p2273. What is the possible cause?


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https://www.autocodes.com/p2271_chevrolet.html

P2272 - O2 Sensor Signal Biased/Stuck Lean Bank 2 Sensor 2
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P2273 - O2 Sensor Signal Biased/Stuck Rich Bank 2 Sensor 2
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1 Answer

Can i use a store bought digital multimeter to determine if there is a possible short to signal circuit with a P2196 (Bank 1 Sensor 1) causing the rich stuck in my car?


My source says code 2196 means the signal coming from the O2 sensor is stuck on rich.
The sensor is supposed to switch back and forth from lean to rich to lean as the computer controls injector "on" time. If the sensor signal stays rich, in most cases there is a leaking injector, or the sensor is faulty. I doubt a short to anything would be involved.
The sensor generates a small ac voltage between zero and one volt. Less than 1/2 volt is lean and more than 1/2 volt is rich. There is a heater in the sensor that could short to the signal wire, but then you should have a code for the heater circuit too.
You can remove the sensor and check for excessive carbon buildup from a rich fuel mixture, or go ahead and replace it and see what happens. A repair shop would be able to check exhaust gas output to find out if its the sensor or a leaking injector.

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I have a 2005 Freestar Se and the P2196 and P2198 problem? Is this the fuel pump problem and how do I fix the problem?


codes p2196 and p2198 refer to the oxygen sensors
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What's your problem?service engine soon light on code P0132,P2195, P2196


P0132 FORD - O2 Sensor Circuit High Voltage Bank 1 Sensor 1xicon.jpghttp://engine-codes.com/p0132_ford.htmlForum CodePossible causes- Front Heated Oxygen Sensor Bank 1 harness is open or shorted
- Front Heated Oxygen Sensor Bank 1 circuit poor electrical connection
- Faulty Front Heated Oxygen Sensor Bank 1
- Inappropriate fuel pressure
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P2195 - O2 Sensor Signal Biased/Stuck Lean Bank 1 Sensor 1

P2196 - O2 Sensor Signal Biased/Stuck Rich Bank 1 Sensor 1

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Is the wiring good going to the O2 sensors? Maybe just look the car over and see if you have any bad grounds. They can do weird things. Could be a bad ICU.

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2007 Hyundai Entourage codes P2187, PP0174,P2189,P2195,P2270,P2272


I've come across these codes before. In almost every case there was an air leak in the intake air hose (hose between the engine air filter & the throttle body). Inspect this hose & tubes attached to it. This is especially true when the lean code includes the comment 'at idle'
P2187 - System too lean at idle Bank 1
P0174 - System too lean Bank 2
P2189 - System too lean at idle Bank 2
P2195 = HO2S Signal Biased/Stuck Lean (Bank 1 Sensor 1)
P2270 = HO2S Signal Stuck Lean (Bank 1 Sensor 2)
P2272 = HO2S Signal Stuck Lean (Bank 2 Sensor 2)

P2187 & P2189 = In order to provide the best possible combination of drivability, fuel economy and emission control, the PCM uses a closed loop air/fuel metering system. The PCM monitors the HO2S signal voltage and adjusts fuel delivery based in closed loop fuel control. Changes in fuel delivery will be indicated by the long-term and the short-term fuel trim values. The ideal fuel trim value is around 0%. The PCM will add fuel when the HO2S signal is indicating a lean condition. Additional fuel is indicated by fuel trim values that are above 0%. The PCM will reduce fuel when the HO2S signal is indicating a rich condition. Reduction in fuel is indicated by fuel trim values that are below 0%. The DTC relevant to fuel trim will be set when the amount reaches excessive levels because of a lean or rich condition

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1 Answer

2006 Mazda codes P0455 P2198 P2189 P2187 P2196. Dont know where to start looking for problem. Bought a new gas cap. Trouble starting after I fill the tank but after I get it started the first time no...


P0455 Evaporative Emission Control System Leak Detected (large leak) P2198 O2 Sensor Signal Stuck Rich (Bank 2 Sensor 1) P2189 System Too Lean at Idle (Bank 2) P2187 System Too Lean at Idle (Bank 1) P2196 O2 Sensor Signal Stuck Rich (Bank 1 Sensor 1) basically you need to replace either the air /fuel ratio sensor,, or,,the heater relay associated with that sensor,, these are very hard to diagnose without the hand held or scope that narrows it down ,, you can check a multitude of voltages on a number of electrical connections, as far as the P0455 ,, if you installed a new gas cap either have the code removed , or wait a couple of days and it should remove itself, as long as the cap is factory approved, Look for vacuum leaks in the evap system , cut hoses,, bad connections,

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1 Answer

2006 hundai elantra P2270 code. If this is an O2 sensor, which one?


Possible O2 sensors:

P2270 O2 Sensor Signal Stuck Lean Bank 1 Sensor 2
P2271 O2 Sensor Signal Stuck Rich Bank 1 Sensor 2
P2272 O2 Sensor Signal Stuck Lean Bank 2 Sensor 2
P2273 O2 Sensor Signal Stuck Rich Bank 2 Sensor 2
P2274 O2 Sensor Signal Stuck Lean Bank 1 Sensor 3
P2275 O2 Sensor Signal Stuck Rich Bank 1 Sensor 3
P2276 O2 Sensor Signal Stuck Lean Bank 2 Sensor 3
P2277 O2 Sensor Signal Stuck Rich Bank 2 Sensor 3
P2278 O2 Sensor Signals Swapped Bank 1 Sensor 3 / Bank 2 Sensor 3
---
This is Bank 1 (closer to the dash panel) Sensor 2 (located after the catalytic converter).

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Note: A malfunctioning front oxygen sensor may cause fuel trim codes to set.
  1. Several Diagnostic Trouble Codes use specific terminology to refer to sensor location. The illustration and key below explain the following terms:
  2. Engine BANK Bank 1 is closer to the dash panel, (also referred to as RH or right hand). Bank 2 is closer to the radiator, (also referred to as LH or left hand).
  3. UP Refers to Sensor 1 or "front sensor". It is located closer to the exhaust manifold and before the catalytic converter.
  4. DOWN Refers to Sensor 2 or "rear sensor." It is located after the catalytic converter.
  5. The following examples show how to interpret oxygen sensor terminology:
  6. B1/S1 = Bank 1/Sensor 1 = Dash panel side, BEFORE the catalyst or "upstream"
  7. B2/S2 = Bank 2/Sensor 2 = Radiator side, AFTER the catalyst or "downstream"

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