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B1S1 and B2S1 upstream on Honda ridgeline - Cars & Trucks

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Posted on Jan 02, 2017

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SOURCE: Honda Ridgeline Service Manual

4WD only operates when gear selector is in L and under 18 mph. the rest of the time your 4Wd will activate automatically if the front wheels start to spin,

Posted on Feb 13, 2009

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SOURCE: I got Engine codes PO135 and PO155.

those are the sensors before the cat

Posted on Nov 07, 2009

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SOURCE: Locate O2 Sensors

Hello mail4rj: My name is Roger and I will help you. Bank 1 sensor 1 means the cylinder head with #1 cylinder located in it. B2S1 is the cylinder head opposite the #1 cylinder. Basically locate the oxygen sensors in front of the catalytic converters and you will have the sensor you asked to locate. Any sensors behind the converters would be wrong. Should you need further help please just ask. Please rate the answer you received. Thank You for using Fix Ya. Roger

Posted on Nov 09, 2009

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SOURCE: I need to order a/f sensors for my 2000 toyota

The parts are the left and right O2 sensors (a/f sensors) before the catalytic converter. The part number is not really an issue, each manufacture has there own part numbers for these sensors. Bosch is 15733

Posted on Dec 27, 2010

jturcotte
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SOURCE: where B1S1, B1S2, B2S1, B2S2,

Hi, B1 refers to the left side of the engine as you look at the belts. B2 is the right side (bank 2).
S1 refers to the upstream sensor on the respective bank. These sensors are mounted in the exhaust manifold or just below the flange. S2 refers to the downstream sensor or the respective bank--the one after the catalytic converter. Please let me know if you have additional questions, and thanks for usinf FixYa.

Posted on Jan 11, 2011

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I've replaced my O2 sensor Bank 1sensor1 on my 1998 Oldsmobile bravada and the check engine light came on again I've done it twice in a week trying to get my car smoged


I am assuming the code you are getting is for oxygen sensor b1s1? Double check which side is bank 1 if you have a v6.
Don't forget wiring issues also.An old trick on a v engine is you could wire b1s2 with b2s1 and just use the b2 sensor for both.

Apr 12, 2017 | 1998 Oldsmobile Bravada

1 Answer

LOCATION OF B1S1 SENSOR FOR 2002 AUDI A6 QUATTRO


Referencing oxygen sensor or O2 sensor or 'lambda sensor':

B1S1 is 'bank 1', which is the passenger side cylinder bank on a V6 or V8.

S1 is the 'upper' or 'upstream' sensor, closest to the cylinder.

Jan 28, 2017 | 2000 Audi A6

1 Answer

Are B1S1 and B2S1 oxygen sensors the same part number?


Not usually, when you have two O2 sensors in an exhaust one will be heated and the other not. Ring Hyundai and ask for a price for each sensor, then get them to give you the part number for reference.

Jul 31, 2014 | 2007 Hyundai Santa Fe Limited

1 Answer

B1s1 b1s2 b2s1


Check your wires going to the sensors. Sounds like one may be shorted to ground. Make sure they are not against the exhaust.

May 30, 2012 | 2004 Jeep Grand Cherokee

2 Answers

Where B1S1, B1S2, B2S1, B2S2, O2 sensors are located before or after the catalytic converter passenger or driver side?


Hi, B1 refers to the left side of the engine as you look at the belts. B2 is the right side (bank 2).
S1 refers to the upstream sensor on the respective bank. These sensors are mounted in the exhaust manifold or just below the flange. S2 refers to the downstream sensor or the respective bank--the one after the catalytic converter. Please let me know if you have additional questions, and thanks for usinf FixYa.

Jan 11, 2011 | Ford Explorer Cars & Trucks

1 Answer

Troubleshooting code b1 s1 and b2 s1


b1s1 and b2s1 is the location of your two upstream o2 sensors not a trouble code(dtc). although these are common to go bad both sensors on both engine banks(sides) is somewhat odd. you may have an underlying problem. you may wish to have your technician connect a scanner and check your long and short term fuel trim values to rule out any other problems. if this was helpful please leave positive rating.

Nov 30, 2010 | 2001 Lexus RX 300

1 Answer

O2 sensors in a 97 gmc 1500 with 5.7 liter


bank 1 is the drivers side bank, so b1s1 would be the drivers side closest to the engine. if the truck is equipped with several 02 sensors then bank 2 or b2s1 would be passenger side closest to the engine. those are called upstream o2 sensors and the others downstream b1s2 and b1s2 b= bank 1= drivers side s=sensor 2=downstream. hope this helps.

Feb 04, 2010 | 1997 Chevrolet K1500

2 Answers

Locate O2 Sensors


both these sensors are located before the catalytic converter,sometimes in the exhaust manifold. are you sure that's the problem. Usually they both don't go at the same time. Are they running rich or lean, get back to me and we'll go from there Thanks Ray

Nov 09, 2009 | 2000 Toyota Camry Solara

1 Answer

I got Engine codes PO135 and PO155.


those are the sensors before the cat

Nov 05, 2009 | 2000 Toyota Camry Solara

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