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Need location of 02 sensor heater fuse b1-s1 - Eclipse Mitsubishi Cars & Trucks

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  • Madman1953 Oct 15, 2008

    is there a fuse for the o2 sensor heater circuit s1 b1 1999 mitsu eclipse 2.0 turbo

  • alex metro
    alex metro May 11, 2010

    what year and model?

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  • Mitsubishi Master
  • 331 Answers

No there isn't. here is the wiring diagrams.
need location of 02 sensor - b402593.jpg(click for full size) 31ada78.jpg(click for full size)

i have all of the service manuals on my mediafire account. here is the link if you want to down load any of them. 1g/2g dsm FSMs

Posted on Oct 16, 2008

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Posted on Jan 02, 2017

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1 Answer

Code P0031 says replace B1 S1


On a front to back engine b1 is the drivers bank. On a transverse engine b1 is the front bank ( b1 has cylinder 1, b2 has cylinder 2 in a v type configuration) s1 is always between the engine and the catalytic converter. Usually in the exhaust manifold or the down pipe.

Sep 10, 2016 | 2011 Toyota Tacoma

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P0172 and P0175 after replacement of cats and rebuilt injectors


Possible solutions include: Inspect all vacuum and PCV hoses, replace if necessary Clean the MAF sensor. Consult your service manual for it's location if you need help. I find it's best to take it off and spray it with electronics cleaner or brake cleaner. Make sure you are careful not to damage the MAF sensor, and make sure it's dry before reinstalling Inspect fuel lines for cracks, leaks, or pinches Check the fuel pressure at the fuel rail Check the fuel injectors, they may be dirty. Use fuel injector cleaner or get them professionally cleaned/replaced. Check for an exhaust leak before the first oxygen sensor (this is unlikely to cause the problem, but it is possible)

Read more at: http://www.obd-codes.com/p0175
Copyright OBD-Codes.com

Sep 23, 2015 | Cars & Trucks

4 Answers

We have a 1997 geo metro the check engine light was on when we took it to deq we got the code p0141 we replaced both o2 sensors but the light is still on what else could it be


The o2 sensors may be ok. They read the amount of fuel and air left over in the unburned exhaust. If too much fuel or air present they will set a code. I agree with Johnny... Have the codes reset and see if the light comes back on. If so you need to have a scan done to see what is causing this code to set

Apr 26, 2015 | 1997 Geo Metro

1 Answer

What causes01 audi allroad 2.7 liter fault code p0421


this can either be a bad cat or o2 sensor its the after cat downstream driver side you can either replace the o2 sensor or buy a spacer from 034 Motorsports to get rid of this problem or get a tune alls it does is checking if the cat is there for emissions will not effect gas mileage. Owner of Audi A6 2.7T 2001.B2 S1 is drivers side pre cat

B1 = Passenger side
B2 = Drivers side
S1 = Pre cat
S2 = Post Cat Example s1:b1

Jul 14, 2014 | 2001 Audi allroad quattro

1 Answer

My dodge durango is showing codes P0031 & P0037. what do i need to do now.


code P0031 - O2 B1 S1 heater circuit low. code P0037 - O2 B1 S2 heater circuit low.

Sep 18, 2013 | 2002 Nissan Altima

1 Answer

Trouble code PO 032


Trouble Code: P0032

O2 (B1 S1) Heater Circuit High

Possible Causes:


O2 heater element is damaged or the heater has failed.O2 heater control circuit is open or it is shorted to power.O2 heater ground circuit is open.PCM has failed .Hi Suzanne,here's a link to your firing order,your oxygen sensor in cylinder one,which is the exhaust manifold is bad.Need more help,I'm here.I took a guess at your engine size,if I'm wrong let me know and I will send you the right one.

Feb 03, 2013 | 2007 Dodge Ram Truck

1 Answer

Where is the a/f fuel sensor heater located on a 2002 highlander v6


a/f sensor honda crv calls it the same thing most people call it an o2 sensor but on some models they are wrong.
the a/f sensor has four wires two are the a/f portion two are the heater curcuit , this is internal to the sensor and does what it says heats the sensor on start up till the exhaust takes over then heat circuit switches off.. i know the crv one is like 230 bucks here in ontairio from dealer . you can get aftermarket o2's but not heard of a/f avail. try your local auto wreckers for one .. the scan that told you the heater circuit was bad should have said b1 s1 or b2 s2 type thing.. this refers to the location of the sensor bank one sensor one refers to odd cyl side of engine sensor above catalitic cnverter s2 refers to behind cat conv
ect... special socket may be needed to remove (accomodates wires) sum times 7/8 wrech will work do it cold or you may strip the threads coming out!!

Feb 03, 2012 | Toyota Highlander Cars & Trucks

1 Answer

I have an 2003 mazdaspeed with a check engine light.. did a scan and it said 02 sensor B1 S1.. what does b1 s1 mean?


B1 means Bank one where the number 1 cylinder is S1 means the up stream sensor the one before the catalytic converter,or the first sensor. Hope this helps if not get back to me and we'll go from there. Please rate my fix as i strive to be the best, Thanks Ray

Jul 31, 2010 | Mazda Protege Cars & Trucks

1 Answer

MY 2003 TOYOTA SEQUOIA GOT ENGINE AND VSC LIGHTS ON. ON THE DEALER, THE COMPUTER READ A OXIGEN SENSOR B1 S1Y GOT THE PART, I NEED TO KNOW HOW TO INSTALLED AND WHERE IS LOCATED.


That model Sequoia should have four oxygen sensors. There will be two in each exhaust line. One will be in front of the catalytic converter, and one will be behind it.

B1 should mean bank one. This is the driver side. S1 is probably the oxygen sensor located before the catalytic converter; however, I am not certain of the number sequence here.

The sensors screw into the exhaust pipe. They will have wires coming out the top.

Oct 20, 2009 | 2003 Toyota Sequoia

1 Answer

Check engine light


Code P1135 is your Air Fuel sensor heater circuit is malfunctioning

Oct 07, 2008 | 2003 Toyota RAV4

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