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Bank 2 sensor 1 O2 sensor

Engine: 6-2997 3.0l dohc

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  • James Mailler
    James Mailler Feb 10, 2014

    engine is a inline 6cyl. 3.0l

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Posted on Feb 10, 2014

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I have the code p0139. replaced o2 twice, need to track down the wiring. does anyone have some advice?


code p 0139 refers to heated oxygen sensor (HO2S) 2 bank 1--slow response===causes --heating inoperative--wiring--HO2S
or
oxygen sensor(O2) 2 bank 1---slow response===causes--wiring ---O2 sensor
as you have replaced the O2 sensor twice with no results then it will be the heated sensor that is faulty
heated sensors are the units in the exhaust manifold of exhaust pipe before the cat converter and O2 sensors are the units after the cat converter
It is normally the HO2 sensor that fails and the wiring problem is from not using the correct special socket for installation or removal that causes damage to the fragile wires to the unit

Feb 19, 2016 | 2001 Dodge Stratus

1 Answer

Where is the bank 2 02 sensor on a 2003 3.0 ford tarusus?


Bank 2 o2 sensor 1 is on the back side of the engine. Simply follow the exhaust manifold nearest the firewall the first o2 is bank 2 o2 1 the next o2 will be bank 2 o2 2. The o2 you see by the radiator is bank 1 o2 1.

Jun 17, 2014 | 2002 Ford Escape

1 Answer

Where is O2 oxygen sensor Bank 1 sensor on acura cl


this is how it goes, this car all depending on the engine size can have 2 or3 or 4 sensors,

sensors are labeled bank 1 sensor 1 or bank 1 sensor 2 and then bank 2 sensor 1 or bank 2 sensor 2.

sensor 1 on either bank is the front sensor before converter closest to engine.
sensor 2 either bank would be the rear sensors after the converter.
bank means which side of the engine,

bank 1 is the side in which the # 1 cylinder is on,
For example a 4 cylinder engine would have the bank1 sensor 1 on the top of the exhaust before the converter and bank1 sensor 2 would be down on the exhaust after converter. it may not have a bank 2. but newer 4cyl are starting to have bank 2

A v-6 engine would have 4 o2 sensors with same concept except one on each side of engine and then one at rear unless using two converters then one after each converter.

if you do not understand this then tell me year,make model and engine size and the complete code like bank 1 senser1 and i will tell you exactly where it is. good day.

Jul 15, 2012 | Cars & Trucks

1 Answer

Hur byter jag växellädsolja på


160....O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 2)

P0161....O2 Sensor Heater Circuit (Bank 2 Sensor 2)

P0162....O2 Sensor Circuit Malfunction (Bank 2 Sensor 3)

P0163....O2 Sensor Circuit Low Voltage (Bank 2 Sensor 3)

P0164....O2 Sensor Circuit High Voltage (Bank 2 Sensor 3)

P0165....O2 Sensor Circuit Slow Response (Bank 2 Sensor 3)

P0166....O2 Sensor Circuit No Activity Detected (Bank 2 Sensor 3)

P0167....O2 Sensor Heater Circuit (Bank 2 Sensor 3)

P0168....Fuel Temperature Too High

P0169....Incorrect Fuel Composition

P0170....Fuel Trim (Bank 1)

P0171....System too Lean (Bank 1)

P0172....System too Rich (Bank 1)

P0173....Fuel Trim Malfunction (Bank 2)

P0174....System too Lean (Bank 2)

P0175....System too Rich (Bank 2)

P0176....Fuel Composition Sensor Circuit

P0177....Fuel Composition Sensor Circuit Range/Performance

P0178....Fuel Composition Sensor Circuit Low Input

P0179....Fuel Composition Sensor Circuit High Input

P0180....Fuel Temperature Sensor A Circuit

P0181....Fuel Temperature Sensor A Circuit Range/Performance

P0182....Fuel Temperature Sensor A Circuit Low Input

P0183....Fuel Temperature Sensor A Circuit High Input

P0184....Fuel Temperature Sensor A Circuit Intermittent

P0185....Fuel Temperature Sensor B Circuit

P0186....Fuel Temperature Sensor B Circuit Range/Performance

P0187....Fuel Temperature Sensor B Circuit Low Input

P0188....Fuel Temperature Sensor B Circuit High Input

P0189....Fuel Temperature Sensor B Circuit Intermittent

P0190....Fuel Rail Pressure Sensor Circuit

P0191....Fuel Rail Pressure Sensor Circuit Range/Performance

P0192....Fuel Rail Pressure Sensor Circuit Low In put

P0193....Fuel Rail Pressure Sensor Circuit High Input

P0194....Fuel Rail Pressure Sensor Circuit Intermittent

P0195....Engine Oil Temperature Sensor

P0196....Engine Oil Temperature Sensor Range/Performance

Nov 20, 2010 | 2004 Volvo S80

2 Answers

Another o2 sensor ? bank 2 is the downstream but if you were looking at the front of the car what would sensor 2 be. is it right or left?


The "bank" references which side of the engine the O2 sensor is on. The "sensor" references if the O2 sensor is before the cat or after the cat.

Bank 1 is the same side of the engine as the number one cylinder. Bank 2 is the other side of the engine.

Sensor 1 is before the catalytic convert and sensor 2 is after the catalytic converter.

So bank 2 sensor 2 is the O2 sensor on the side of the engine opposite the number one cylinder and after the catalytic converter.

Nov 17, 2010 | 2004 Infiniti I35

2 Answers

Where is O2 sensor circut bank1 sensor 2. And bank 2 sensor 2


Bank 2, sensor 2 is at the bottom of the engine as you look in from the bumper. It is installed in the exhaust pipe just below the catalytic converter. The bank 1, sensor 2 is at the same location on the back of the engine below the firewall.

See pictures below

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Oct 03, 2010 | 2000 Mercury Sable

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).

---
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"

Aug 06, 2010 | Hyundai Elantra Cars & Trucks

1 Answer

O2 sensor,is bank 1 before or after the cad


Bank 1 doesnt matter on a four cylinder engine. In 6 or 8 cylinder engines they use Bank 1 or Bank 2 to clarify what side of the engine they are talking about. On yours there are 2 Oxygen sensors (O2) replace them both for best performance.

Feb 23, 2010 | 2006 Pontiac G6

2 Answers

I need the location of the o2 sensors on a 1997 ford contour gl 4-121 2.0 dohc


Ford contour has 4 O2 sensors, one under the coil pack between the engine and firewall (bank 1, sensor 1 and it's a pain to reach), one in front between the radiator and engine and two accessible from underneath.

Nov 01, 2009 | 1997 Ford Contour

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