P0430 Catalyst System Efficiency Below Threshold (Bank 2)
Well, first.. you killed the messenger.
Bank 2 is the one set back behind bank 1 .. Cyl 1 is always frontmost
(toward belts) and in bank 1.
If you have no other codes, probably a damaged catalytic converter.
Yeh, I'm a Krusty old Geezer, putting up with my 'smartass' is the price
you pay..DEAL with it!
Thanks: I was afraid of that. This is my son's vehicle and I have been
trying to find an easy fix for some time. P0430 is the only code. The CD
repair manual would seem to imply that if one fixed the cause, the catalyst
would work. Changing the plugs and wires made run better.
For some reason this vintage of the 5-liter equipped Explorer eats ignition
wires faster than anything else I have seen. My '98 is on the third set,
with less than 100K. When the telltale hesitation and slight vibration
appeared for the first time (at around 35K), it took at least a week for the
CEL to turn on. I assumed it was TC shudder and kept driving. Luckily, no
catalytic converter damage resulted from the unburned fuel. Otherwise it's a
very solid engine.
BTW: On a V engine, bank 2 is always the one that does not include cylinder
1. Driver side in this case.
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