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Dtc P0141

alz

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alz Enthusiast

alz

Posted
Posted

I am getting an O2 sensor trouble code, P0141, which refers to bank 1, sensor 2. Which side of the engine is bank 1 on? Passenger or Driver side?

Which brand? Bosch or Denso?

  • 2 weeks later...
gregrocks89 Senior Enthusiast

gregrocks89

Posted
Posted

Bank1 is on your drivers side. Cylinders 1,3,5,7 are one the drivers and the passenger is 2,4,6,8 thus being bank 2

 

ac delco plugs works the best for gm trucks

VRSCA1 Enthusiast

VRSCA1

Posted
Posted
I am getting an O2 sensor trouble code, P0141, which refers to bank 1, sensor 2. Which side of the engine is bank 1 on? Passenger or Driver side?

Which brand? Bosch or Denso?

 

Driver side follow the pipe from the left manifold it will twist and turn,sensor 2 will be post catalytic converter(sensor just AFTER the catalytic converter).I would go with a denso my self,but bosch would probably be o.k. also.Hopefully the old sensor comes out without yanking the threads out,have a TAP handy in case you need clean the treads up in the pipe.

  • 1 month later...
alz Enthusiast

alz

Posted
  • Author
Posted

So, I replaced the O2 sensor with a Bosch. Cleared the code. It has come back a couple times since then. This last time it was gone for two weeks.

How do I get rid of this error permenantly?

  • 3 weeks later...
alz Enthusiast

alz

Posted
  • Author
Posted

Alright, I can't seem to get rid of this code. Wiring all looks good. I replaced the O2 sensor with a Bosch. When I clear the code, it always seems to come back a few weeks later.

Should I try a Denso sensor instead?

Would a battery that is aging cause this? KOEO, I get just below 12v, 11.88 at the heater circuit. While idling the battery reads above 14v and 12.8v when turned off.

What about a sticky t-stat? I notice first thing, the temp goes all the way to the middle of the gauge before dropping to 1/4 and then stays there while driving.

 

I don't to just throw parts at this, I could use a little guidance.

gregrocks89 Senior Enthusiast

gregrocks89

Posted
Posted

just unplug your engine light bulb haha. i did that. I had like 5 codes a day about my dam 02 sensors. i cut my cats out thats why. i hook up truck up to a scanner weekly anyways to catch stuff.

alz Enthusiast

alz

Posted
  • Author
Posted

I am the kind of guy who fixes things, not ignore them. Even though the light isnt always on, I know the problem still exists.

gregrocks89 Senior Enthusiast

gregrocks89

Posted
Posted

yeah i agree with yeah on fixing it. i usually fix stuff on my truck and pretty anal about stuff. i Had my cats cut out and replaced with high flows and my light was on anyways so i cut them off in a whole hurry. then after a while with dicking around with them trying to fool the computer i gave up and just unplugged the bulb cuase i had to replace a couple bulbs in the cluster anyways haha

VRSCA1 Enthusiast

VRSCA1

Posted
Posted

More than likley the wrong o2 sensor was replaced,did you follow the driver side exhaust pipe all the way over to the 1/2 o2 sensor visually? the pipes sometimes twist around and you can loose track of which sensor downstream is coming off of bank 1 & bank 2.

Other then checking the wiring to the sensor,try switching the new o2 sensor with the other downstream then reevaluate or swap the one you took out first and install it into the other ones position and see what happens.

  • 3 weeks later...
alz Enthusiast

alz

Posted
  • Author
Posted

You know, when I read this, I kind of laughed. I was sure I replaced the right sensor. For the heck of it I looked under there today, I was wrong.

The driver side downpipe snakes over to the pass side and then back.

I put the original O2 sensor in its place and we will see what happens.

 

For what its worth, the CEL has been out and no codes for a couple weeks, just coincidence?

Thanks VRSCA1

VRSCA1 Enthusiast

VRSCA1

Posted
Posted
You know, when I read this, I kind of laughed. I was sure I replaced the right sensor. For the heck of it I looked under there today, I was wrong.

The driver side downpipe snakes over to the pass side and then back.

I put the original O2 sensor in its place and we will see what happens.

 

For what its worth, the CEL has been out and no codes for a couple weeks, just coincidence?

Thanks VRSCA1

 

Your not the first one to do this.....I have been there done that myself once....ONCE!

Probably will be fixed now...Was a common error made by many incuding myself....used to see it often when I worked at the dealer.

VRSCA1 Enthusiast

VRSCA1

Posted
Posted
You know, when I read this, I kind of laughed. I was sure I replaced the right sensor. For the heck of it I looked under there today, I was wrong.

The driver side downpipe snakes over to the pass side and then back.

I put the original O2 sensor in its place and we will see what happens.

 

For what its worth, the CEL has been out and no codes for a couple weeks, just coincidence?

Thanks VRSCA1

 

Not a coincidence if you confirmed visually that the incorrect o2 sensor/location was being addressed.Glad I could help out.

alz Enthusiast

alz

Posted
  • Author
Posted

The CEL has been gone for a couple weeks before I noticed the mixed.

Should be fixed now, I would think.

  • 4 weeks later...
Chris03Silver Enthusiast

Chris03Silver

Posted
Posted

hey guys,

so i have had knock sensor go bad and the guy before me prob never did get it fixed till i bought the truck, anyways, after new intake gasket and cleaning some sort of debris out of the drivers side injectors, i am now having the rear O2 sensor tripping a trouble code, think its related or just finally going thru its checks and noticing catalyst is out of wack? my freeze frame info has changed a lot since the knock sensor replacement and missfire issues....

 

Chris

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