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HELP, CHECK ENGINE LIGHT PROBLEM
Posted: Sun Sep 23, 2007 9:34 pm
by nofinga911
My check engine light is on and I checked the code with my predator and it says "P0430 Catalyst System Efficiency Is Below Threshold (Bank 2). I cleared the code but it keeps coming back. Can anyone please help me? -Thanks
RE: HELP, CHECK ENGINE LIGHT PROBLEM
Posted: Mon Sep 24, 2007 8:40 am
by 06MonteSS
from info I found online:
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P0430 - Catalyst System Efficiency Below Threshold (Bank 2). The PCM compares the readings from the rear Heated Oxygen Sensor (HO2S) and front HO2S and determines how well the catalytic converter is working. If the readings get close enough to each other, the PCM sets DTC P0430.
If this is the only code pulled, then it would tend to indicate a catalytic converter starting to go bad. Crossed or damaged HO2S wiring would set a DTC P0430 as well. If the fuel pressure is within specifications and there are no vacuum leaks and the exhaust system is in good shape, then the chances of a bad catalytic converter are good.
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could be an O2 sensor or the cat. converter
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http://www.obd-codes.com/trouble_codes/ ... bank-2.php
RE: HELP, CHECK ENGINE LIGHT PROBLEM
Posted: Mon Sep 24, 2007 10:58 am
by mikel
Should not be happening if you have cats.
Try restoring the backup to see if it persists, if so, see the dealer, as you may have an exhaust leak.
Thanks