'00 Seville STS Diagnostic Trouble Code P0420
#1
'00 Seville STS Diagnostic Trouble Code P0420
P0420 is a catalyst system low efficiency
Question - I've had this code pop up every now and then; sometimes it clears itself and other times I clear it by clearing all codes. Can anyone shed some light on what triggers it? Is it a catalytic converter problem? At this point, I'm not too worried about it but I thought I'd ask you experts.
Question - I've had this code pop up every now and then; sometimes it clears itself and other times I clear it by clearing all codes. Can anyone shed some light on what triggers it? Is it a catalytic converter problem? At this point, I'm not too worried about it but I thought I'd ask you experts.
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ItsJustLia
Cadillac Deville
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11-04-2012 07:09 PM