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 Help troubleshooting code: P0430

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LockenDIFF
The Man with the Tan
LockenDIFF


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PostSubject: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 2:48 pm

Hey guys anyone have to deal with this code before? and if so what was the cause? Its saying Cat low efficiency bank 2, did i need new sensors or new cats? It has turned off before than back on a few miles later.
Thanks
Nick
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 2:59 pm

LockenDIFF wrote:
Hey guys anyone have to deal with this code before? and if so what was the cause? Its saying Cat low efficiency bank 2, did i need new sensors or new cats? It has turned off before than back on a few miles later.
Thanks
Nick

Hey Nick,

It's either cat, o2 sensor or an exhaust leak.

You can tap the cat with a hammer to see if it's collapsed or do a pressure test to see if it's clogged. If you havent done the O2 sensors it would be a good time to try that. And if it was an exhaust leak - you would probably know already. Good luck!

Oh and for your pure entertainment - watch this https://www.youtube.com/watch?v=5icTmYItwiE
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:21 pm

Ed will reccomend seafoam induction I have yet to do it to mine but that may help too.
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LockenDIFF
The Man with the Tan
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:22 pm

Jake wrote:
LockenDIFF wrote:
Hey guys anyone have to deal with this code before? and if so what was the cause? Its saying Cat low efficiency bank 2, did i need new sensors or new cats? It has turned off before than back on a few miles later.
Thanks
Nick

Hey Nick,

It's either cat, o2 sensor or an exhaust leak.

You can tap the cat with a hammer to see if it's collapsed or do a pressure test to see if it's clogged. If you havent done the O2 sensors it would be a good time to try that. And if it was an exhaust leak - you would probably know already. Good luck!

Oh and for your pure entertainment - watch this https://www.youtube.com/watch?v=5icTmYItwiE

Thanks for the reply Jake, i would have never thought of using laq thinner in a car. Thats scares me more than the code Smile
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LockenDIFF
The Man with the Tan
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:23 pm

So you have used laq thinner? I've used seafoam in one of my other cars I may go that route first. Thinner scares me
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:33 pm

LockenDIFF wrote:
So you have used laq thinner? I've used seafoam in one of my other cars I may go that route first. Thinner scares me

Nope - have never had to and dont know if I would either. Seafoam would be a good cheap start. I would say if your cat is clogged then it should be replaced otherwise it will only be a matter of time and the code will be back. I would almost bet it's time for new cats BUT if the O2 sensors are really old they might be bad as well. It's either clogged or the sensor is reading it's clogged and with your truck being a couple years old with a couple miles I'm betting on cats..
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LockenDIFF
The Man with the Tan
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:41 pm

Jake wrote:
LockenDIFF wrote:
So you have used laq thinner? I've used seafoam in one of my other cars I may go that route first. Thinner scares me

Nope - have never had to and dont know if I would either. Seafoam would be a good cheap start. I would say if your cat is clogged then it should be replaced otherwise it will only be a matter of time and the code will be back. I would almost bet it's time for new cats BUT if the O2 sensors are really old they might be bad as well. It's either clogged or the sensor is reading it's clogged and with your truck being a couple years old with a couple miles I'm betting on cats..

Ok I agree laq thinner is scary, either way If its the cat's or 02 sensors it seems to be a pretty penny for either. 4 02 sensors 100+ each or y pipe w/cats 400+ lol, I guess I'll go cats first. I'm the second owner, truck has 110k now, most likely they are all stock parts from 1998
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:43 pm

LockenDIFF wrote:
Jake wrote:
LockenDIFF wrote:
So you have used laq thinner? I've used seafoam in one of my other cars I may go that route first. Thinner scares me

Nope - have never had to and dont know if I would either. Seafoam would be a good cheap start. I would say if your cat is clogged then it should be replaced otherwise it will only be a matter of time and the code will be back. I would almost bet it's time for new cats BUT if the O2 sensors are really old they might be bad as well. It's either clogged or the sensor is reading it's clogged and with your truck being a couple years old with a couple miles I'm betting on cats..

Ok I agree laq thinner is scary, either way If its the cat's or 02 sensors it seems to be a pretty penny for either. 4 02 sensors 100+ each or y pipe w/cats 400+ lol, I guess I'll go cats first.

WAITTTT a minute before you pay $400 for cats. Go to discoweb.org - tech section and read the article on welding replacement cats in. The cat he used are $50 each and if you dont weld you can take them to any exhaust/auto shop and have the old ones cut out and new ones welded in.




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LockenDIFF
The Man with the Tan
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:44 pm

So if Ed chimes in would you recommend using seafoam in gas tank or engine oil? I'll defiently try seafoam first.


Last edited by LockenDIFF on Wed Oct 12, 2011 3:47 pm; edited 1 time in total
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LockenDIFF
The Man with the Tan
LockenDIFF


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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:46 pm

Jake wrote:
LockenDIFF wrote:
Jake wrote:
LockenDIFF wrote:
So you have used laq thinner? I've used seafoam in one of my other cars I may go that route first. Thinner scares me

Nope - have never had to and dont know if I would either. Seafoam would be a good cheap start. I would say if your cat is clogged then it should be replaced otherwise it will only be a matter of time and the code will be back. I would almost bet it's time for new cats BUT if the O2 sensors are really old they might be bad as well. It's either clogged or the sensor is reading it's clogged and with your truck being a couple years old with a couple miles I'm betting on cats..

Ok I agree laq thinner is scary, either way If its the cat's or 02 sensors it seems to be a pretty penny for either. 4 02 sensors 100+ each or y pipe w/cats 400+ lol, I guess I'll go cats first.

WAITTTT a minute before you pay $400 for cats. Go to discoweb.org - tech section and read the article on welding replacement cats in. The cat he used are $50 each and if you dont weld you can take them to any exhaust/auto shop and have the old ones cut out and new ones welded in.


My uncle owners a dealership around my way and he said the shop he works with would charge him 500 installed most likely they would weld in cats but I'll check discoweb first, Jake, one man full of info Smile

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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:48 pm

LockenDIFF wrote:
So if Ed chimes in would you recommend using seafoam in gas tank or engine oil? I'll defiently try seafoam first.

Ed would likely send you this link

http://landroverforums.com/forum/discovery-ii-18/how-seafoam-induction-procedure-33554/

slightly different for a D1 but you should get the jist of things
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LockenDIFF
The Man with the Tan
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:55 pm

yea those cats he used only cost 48 bucks a piece, I'm going to call or swing by the exhaust shop here to see on install since I don't weld
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LockenDIFF
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 3:58 pm

Jake wrote:
LockenDIFF wrote:
So if Ed chimes in would you recommend using seafoam in gas tank or engine oil? I'll defiently try seafoam first.

Ed would likely send you this link

http://landroverforums.com/forum/discovery-ii-18/how-seafoam-induction-procedure-33554/

slightly different for a D1 but you should get the jist of things

I lol at this "Other drivers will look at you and wonder why it is smoking so much. Just smile and wave. They will never understand."
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Long Haul
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 5:07 pm

I had that same code on mine a while back. It ended up being an O2 sensor. Try taking the rear ones out and swap them side to side. If the code comes up for the other bank you know what your problem is.
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LockenDIFF
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 8:21 pm

Long Haul wrote:
I had that same code on mine a while back. It ended up being an O2 sensor. Try taking the rear ones out and swap them side to side. If the code comes up for the other bank you know what your problem is.

I'll give it a try, not sure if it matters to solve but while at idle the truck shakes some. Not a lot but I can see the passenger seat move.
Thanks for the replies guys, BIG help.
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Long Haul
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 8:28 pm

I have 2 good used O2 sensors if you need one, they probably have about 1500 miles on them I just had to redo my exhaust and ended up welding new ones in.
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 8:38 pm

Good luck buddy! Btw you got some mud down your way to play in?
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Long Haul
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 8:48 pm

Jake wrote:
Good luck buddy! Btw you got some mud down your way to play in?


Damn I wish I had my front driveshaft in Id have to find a field to play in
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeWed Oct 12, 2011 8:50 pm

Long Haul wrote:
Jake wrote:
Good luck buddy! Btw you got some mud down your way to play in?


Damn I wish I had my front driveshaft in Id have to find a field to play in

Seriously let's goooooo!!!!!!!! Lol
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durt d1ver
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeThu Oct 13, 2011 10:13 am

You can also use ATF. Pop off the vacuum hose that connects the brake booster to the intake, and stick the tube in the bottle of atf. pretty much the same thing as seafoam. Will make lots of smoke. Or at your local chevy dealer you can buy "upper engine cleaner" which again is pretty much the same thing, but to GM's specs.
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeThu Oct 13, 2011 10:17 am

durt d1ver wrote:
You can also use ATF. Pop off the vacuum hose that connects the brake booster to the intake, and stick the tube in the bottle of atf. pretty much the same thing as seafoam. Will make lots of smoke. Or at your local chevy dealer you can buy "upper engine cleaner" which again is pretty much the same thing, but to GM's specs.

True ATF will clean just about anything. I think thats part of whats in that Marvel Mystery Oil
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LockenDIFF
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeThu Oct 13, 2011 11:30 am

[quote="Long Haul"]I had that same code on mine a while back. It ended up being an O2 sensor. Try taking the rear ones out and swap them side to side. If the code comes up for the other bank you know what your problem is. [/quote

Tried to do this this morning and got off the driver side 02 off then of course I cant get the passenger side one to budge so...... F! What luck Mad


Last edited by LockenDIFF on Thu Oct 13, 2011 11:34 am; edited 1 time in total
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LockenDIFF
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeThu Oct 13, 2011 11:33 am

Long Haul wrote:
I have 2 good used O2 sensors if you need one, they probably have about 1500 miles on them I just had to redo my exhaust and ended up welding new ones in.

Cool, I'll let you know if I ever get the old ones off, thanks
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeThu Oct 13, 2011 11:34 am

[quote="LockenDIFF"]
Long Haul wrote:
I had that same code on mine a while back. It ended up being an O2 sensor. Try taking the rear ones out and swap them side to side. If the code comes up for the other bank you know what your problem is. [/quote

Tried to do this this morning and got off the driver side 02 then of course I cant get the passenger side one to budge so...... F! What luck Mad

Yea I was going to wish you luck on that as well.. PB Blaster and some heat? Obviously dont fry it but with the rust and the head of the pipe it may take quiet a bit..
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Jake
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PostSubject: Re: Help troubleshooting code: P0430   Help troubleshooting code: P0430 I_icon_minitimeThu Oct 13, 2011 11:36 am

[quote="Jake"]
LockenDIFF wrote:
Long Haul wrote:
I had that same code on mine a while back. It ended up being an O2 sensor. Try taking the rear ones out and swap them side to side. If the code comes up for the other bank you know what your problem is. [/quote

Tried to do this this morning and got off the driver side 02 then of course I cant get the passenger side one to budge so...... F! What luck Mad

Yea I was going to wish you luck on that as well.. PB Blaster and some heat? Obviously dont fry it but with the rust and the head of the pipe it may take quiet a bit..

Oh and if you dont have a torch you can come up to my place and we can give it hell
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