Question about 2001 Toyota RAV4

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My 01 rav4 had engine engine light took to toyota said it was bank1 sensor1. put it in and checked again it said bank1 sens2 put it in. light is still on and it is hard idling

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6ya6ya
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Posted on Jan 02, 2017

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gforce3s
  • 31 Answers

SOURCE: check engine light

B1S1 O2 sensor is threaded into your exhaust manifold, closest to the actual engine in the exhaust stream.

Posted on Dec 13, 2008

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  • 1 Answer

SOURCE: i have a toyota rav4 2003 management light came on

toyota v6 that is california emission does not accept reading from any sensor that doesnt come from toyota even if it's denso they use different number denso that if u didnt get it from the dealer the light will come on and on again

Posted on May 07, 2010

ameezle
  • 100 Answers

SOURCE: where is 2003 avalon o2

Hi, the sensor is on the front exhaust manifold. Here is a picture of the sensor you need to replace..... You should be able to replace it yourself.
ameezle.jpg

Posted on May 31, 2011

airjer995
  • 5332 Answers

SOURCE: Where is sensor1 bank1 o2 sensor on a 95 avalon

Bank refers to the side of the engine. Bank1 is always the same side as the number one cylinder. Bank 2 is always the other side of the motor on a v-6 or v-8

Sensor refers to before or after the catalytic converter. Sensor 1 is always before the cat. sensor 2 is always after the cat.

Bank1 sensor 1 on your vehicle - since the number one cylinder is on the backside of the motor closest to the firewall the B1S1 - O2 would be in the exhaust manifold on the back side of the engine before the catalytic converter.

Posted on Sep 19, 2011

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1 Answer

How many o2 sensors on a 2007 honda accord w/4 cyl. engine?


there are two. One before the catalytic converter (Bank1 Sensor1) and one after the catalytic converter (Bank1 Sensor2).

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You are lucky they took it back. Did you use the proper wrench to install it and use the proper anti-seize lubrication? Check the wiring to it all the way that you can. IT would be best if you could check it all the way to the ECM. Do you remember what the code was?

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Hi, I have a 96 Jeep Cherokee with straight 6 cyclinder engine.The check engine lights on and Itook get to be put on a machine and the codes readed P0132,P0135,P0300,P0301,and P0420. Could you tell me


p132+ an O2 sensor reading is high bank1,sensor1, p135=O2 Heater circuit is bad, bank1,sensor1.

P300= Random misfires, p301 misfire cylinder1.p302 misfire cylinder2

p420 Bank1 Catalytic converter efficiency failing

What this means is that the Bank1 O2 sensor is either bad or the wiring to it is defective. Check for heat burnthrough on wires. The misfires started randomly and now pinpoint to cylinders 1 and 2.

The Catalytic converter failing because the misfires are clogging it. This can self correct once the cylinders stop misfiring.

Which messed up first is where you start solving this. Replace the O2 sensor, it is fouled out on Bank1. The heater circuit(p135) just makes it work faster and has little effect once you are underway. But high resistence in the O2(p132) means it is coated and ineffective.

There is a problem with firing #1 and #2 sparkplug. Probably the cause for the Catalytic converter plugging. A cracked coil, plug wires, sparkplugs are some causes as well as dirty fuel injectors on those 2 cylinders.

It is a cause and effect situation where 1 part fails and damages another. You need to fix the source of the problem or you will repeat th damage.

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1 Answer

How to reset DTC code after oxgen sensor replaced?


Year make and model also engine size. I'm not a fan of universal O2 sensors perhaps you should've put a direct fit on. To clear the codes depending on the year if the car removing the and make removing the battery negative, the ECM fuse or using a scanner should work.

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1 Answer

Where is sensor1 bank1 o2 sensor on a 95 avalon


Bank refers to the side of the engine. Bank1 is always the same side as the number one cylinder. Bank 2 is always the other side of the motor on a v-6 or v-8

Sensor refers to before or after the catalytic converter. Sensor 1 is always before the cat. sensor 2 is always after the cat.

Bank1 sensor 1 on your vehicle - since the number one cylinder is on the backside of the motor closest to the firewall the B1S1 - O2 would be in the exhaust manifold on the back side of the engine before the catalytic converter.

Sep 19, 2011 | 1995 Toyota Avalon

2 Answers

Can you tell me what codes 54 and 21 are on a 1995 caravan 3.0 please?


Hello..
Code 21: Is an oxygen sensor Code 54: Is a crank positioning sensor.
Hope this helps!

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2 Answers

I have a toyota rav4 2003 management light came on checked code p1155 oxygen sensor bank1 sensor 2 changed it, cleared code light still,came on again ,changed the other three ,cleared the code again, ran...


The upper sensors are air fuel sensors and the lower ones are o2 sensors. you cant mix these up. Assuming you did everything right and still coding then either the new sensor b1s2 is bad or the wirng(power and ground need to be checked. A scan tool can be used to look at the performance of the sensors too. Sometimes the codes just point to the area of the problem and changing the part isn't the answer.

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1 Answer

Check engine light


B1S1 O2 sensor is threaded into your exhaust manifold, closest to the actual engine in the exhaust stream.

Dec 13, 2008 | 1995 Toyota Camry

1 Answer

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