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Thread: P0430
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01-30-2007, 05:50 AM #1
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silver- 98 T/A WS6
P0430
i got this code in my car. it says bank 2 which i think is the passenger side, but i cant tell if its the o2 sensor or the cat. anyone have any advice?
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01-30-2007, 05:56 AM #2
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01-30-2007, 06:14 AM #3
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silver- 98 T/A WS6
thanks
thanks bro, i will start with that.
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01-30-2007, 06:54 AM #4
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01-30-2007, 08:22 AM #5
P0430 Catalyst Sys Low Efficiency Bank 2
HO2S, located in the exh sys past the 3-way cat converter, produces an output sig which indicates the 02 storage capacity of the catalyst. A P0430 Bank 2 indicates the 3-way cat capacity is below a threshold considered acceptable. The book says to check:
//Verify the 3-way cat converter is originale equip part
//Inspect cat converter for damage such as dents, severe discoloration caused by excessive heat, holes, etc
//Insure that internal 3-way cat converter rattle caused by damage is not present
//Inspect exhaust sys for leaks, damage, or loose/missing hardware in the area from the converter to the HO2S #2 primarily.
//Insure that the HO2S #1 and #2 are secure and their pigtails and wiring are not damaged or contacting the exhaust.
I did some exhaust work and my header (collecter) bolts were not properly torqued and was leaking. I jacked and blocked the right side. started car and went looking for a leak. Tightened the bolts leak checked again and reset the computer....code went away. Hope this helps2000 Z28 M6, SLP Lid, SLP Bellows, SLP UD,
P&P Maf, TB By-Pass, PS Shorties, LS6 Intake, FAST 78mm TB, Hooker CB, Hurst Billet, Front Tower Brace, small 218/218....527/527....114 cam.
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01-30-2007, 11:25 AM #6
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You can also try swapping the rear 02's side to side, then see if it throws P0420 for the drivers side.
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01-30-2007, 02:59 PM #7
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Navy Blue Metallic- 2001 camaro SS A4
P0430 is for the right cat. (Catalyst system efficiency below threshold, right bank)
GM is replacing them if its throwing P0430 (right) and/or P0420 (left).
http://www.ls1.com/forums/showthread.php?t=35957
http://www.ls1.com/forums/showthread.php?t=35977
http://www.ls1.com/forums/showthread...ghlight=recallLast edited by bevenue; 01-30-2007 at 03:08 PM.
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01-30-2007, 03:04 PM #8
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Original poster has a '98.
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01-30-2007, 03:22 PM #9
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01-30-2007, 03:32 PM #10
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I'm thinking the letter only applies to the 00-02 cars from what I've seen. Anyone with a pre-00 get the letter?
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01-30-2007, 05:27 PM #11
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01-30-2007, 05:49 PM #12
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silver- 98 T/A WS6
thanks
so i guess im gonna change my cat. i had a feeling it was that anyway. i appreciate all the feedback from everyone. im off to find a cat.
SemperFi
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02-01-2007, 08:35 AM #13
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Red- 2000 WS6
Much wisdom in what is said above. I suggest you take your car to the Autohobby shop, swap the two O2 sensors, reset the PCM and see what code comes back. If it's the same code, you have a bad passenger side cat. If it comes back as a P0420 (as suggested above), you have a bad sensor. It's easy to do and afterward, you'll know exactly what the problem is and will avoid paying for parts you may not need.
Semper Fi,
Marc
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02-01-2007, 08:39 AM #14
Yip
The latter is sound advice. Sensor should be cheaper than the Cat. Easy to swap then over. If it is the same code you can leave then of course and go for the Cat.
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02-01-2007, 09:44 AM #15
call the dealer and ask them if ur model year is covered under the 10 yrs 120k miles im sure it is and than if so get it replaced for free...the cat converter if not slap some high flow aftermarket cats on there
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02-01-2007, 12:59 PM #16
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silver- 98 T/A WS6
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02-01-2007, 01:01 PM #17
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