Check Engine Light (P0430)
09-24-2006, 10:39 PM
#1
2nd Gear Member
Thread Starter
Join Date: Sep 2006
Posts: 288
Check Engine Light (P0430)
Hey, all. I have had a C&L intake and Brenspeed 93 tune installed on my car for about 6,000 miles and have never had a problem. About two weeks ago I had a Mac Catted Prochamber installed as well. It has been working fine as well.
However, my car just threw a check engine light. The SCT tuner showed a code of P0430. Car seems to be driving fine. What can this mean and could it be my new midpipe causing it?
09-24-2006, 11:02 PM
#2
RE: Check Engine Light (P0430)
i have the same code pop up.. i looked it up and i found it to say something about the cats.. cant really remember but it said somthing like the cats where not working efficiantly.. i ave high flow cats and one of my 02 sensors was replaced. i reset the code and it still pop up every once in awhile myabe like every 700 to 1000 mile. dont know if this helps you
09-25-2006, 12:10 AM
#3
2nd Gear Member
Thread Starter
Join Date: Sep 2006
Posts: 288
RE: Check Engine Light (P0430)
Yeah, I did some looking and came up with this:
P0430- Catalyst System Efficiency below Limit - Bank No 2.
So it sounds like this definitely has something to do with the new high flow cats. Anyone else have this problem?
09-25-2006, 03:27 PM
#4
3rd Gear Member
Join Date: Mar 2006
Location: Connecticut
Posts: 758
RE: Check Engine Light (P0430)
My check engine light just came on too!..It also happened a couple of weeks ago,checked it with my SCT..no codes...so i reset the light. Yesterday it came on again..i havent SCT 'd it yet was thinking about just taking it to a shop with more sensistive equipment. After reading a couple of these posts i am wondering if i am having a problem with the highflow cats too!...Will it harm anything driving it this way??...
09-25-2006, 10:35 PM
#6
2nd Gear Member
Thread Starter
Join Date: Sep 2006
Posts: 288
RE: Check Engine Light (P0430)
Cleared the code with the SCT and it hasn't come back yet, we will see.
After a little digging I came up with the following as possible reasons for throwing this code:
(1) Exhaust Leak
(2) Bad catalytic converter
(3) Hi-Flow Cats
Sounds like hi flow cats can cause this code even if there isn't any real problem and a lot of people are just disabling the 02 sensor.
09-25-2006, 11:24 PM
#7
3rd Gear Member
Join Date: Jan 2006
Location: Indiana
Posts: 884
RE: Check Engine Light (P0430)
ORIGINAL: vocoat
My check engine light just came on too!..It also happened a couple of weeks ago,checked it with my SCT..no codes...so i reset the light. Yesterday it came on again..i havent SCT 'd it yet was thinking about just taking it to a shop with more sensistive equipment. After reading a couple of these posts i am wondering if i am having a problem with the highflow cats too!...Will it harm anything driving it this way??...
My check engine light just came on too!..It also happened a couple of weeks ago,checked it with my SCT..no codes...so i reset the light. Yesterday it came on again..i havent SCT 'd it yet was thinking about just taking it to a shop with more sensistive equipment. After reading a couple of these posts i am wondering if i am having a problem with the highflow cats too!...Will it harm anything driving it this way??...
09-26-2006, 10:16 AM
#8
3rd Gear Member
Join Date: Mar 2006
Location: Connecticut
Posts: 758
RE: Check Engine Light (P0430)
It will come back!..I had the same problem. It was the PO430 code. I think i will just have the 02 sensors disconected. If your running the highflow cats there is a good chance it will show up.
[IMG]local://upfiles/31319/E37DADAA03C34F6288B18DE91B3B904D.jpg[/IMG]
[IMG]local://upfiles/31319/E37DADAA03C34F6288B18DE91B3B904D.jpg[/IMG]
09-26-2006, 11:12 AM
#9
I ♥ Acer
Join Date: Mar 2006
Location: Concord, NC
Posts: 1,278
RE: Check Engine Light (P0430)
Have the rear O2s disabled in the tune or buy MIL eliminators to fool the computer into thinking the cats are doing more than they really are. Either will work, MIL eliminators won't require a retune.