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Thread: P0430 error code
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10-01-2010, 03:31 PM #1
- Join Date
- Apr 2010
- Location
- Alabama
- Posts
- 3,625
Black/ Silver- 98 TA WS6/ 01 C5 Corvette
P0430 error code
Okay the p0430 error code popped up after I got my coolant sensor fixed and exhaust adjusted at a shop. What would cause this? The exhaust system is obx lts and y-pipe ,high flow cats, and slp loudmouth. My exhaust is only 1 month old. So how could my cats be clogged? At higher rpms it back fires or sounds like it but I don't see any smoke. Any help would be appreciated.
Last edited by 98TransAmWs-6; 10-01-2010 at 06:15 PM.
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10-15-2010, 08:09 AM #2
- Join Date
- Oct 2007
- Location
- Dallas
- Age
- 45
- Posts
- 18
Drk Blue- 2000 WS6 T/A Convertible
I have had this issue myself a few times. Once it was bad 02 sensors that weren't reading properly behind the cats throwing that code. The other time it was actually a bad spark plug the caused the fuel trims to change enough that I got a backfire sound and an occasional mis-fire. Just replaced and it worked fine.
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10-15-2010, 10:21 AM #3
- Join Date
- Oct 2007
- Location
- Dallas
- Age
- 45
- Posts
- 18
Drk Blue- 2000 WS6 T/A Convertible
I have had this issue myself a few times. Once it was bad 02 sensors that weren't reading properly behind the cats throwing that code. The other time it was actually a bad spark plug the caused the fuel trims to change enough that I got a backfire sound and an occasional mis-fire. Just replaced and it worked fine.
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