On Thu, 14 Feb 2008 01:38:58 GMT, "Pat Dreiding"
<patdreiding@[EMAIL PROTECTED]
> wrote:
>I need a few words of wisdom about my '99. It has 65K miles on it.
About
>a week ago I did something that I believe was very stupid. I cleaned my
>engine by hosing it down. The car ran ok for a little while, but then
>stopped. The engine light was on. Yes - you guessed it. Water in the
plug
>wells. Ugh! I spend the time to remove the water and dry the wires &
plug
>wells. The car was running fine for another few days afterwards and then
>the check engine light returned. The autozone tech told me the trouble
>shooting error code is P0420., which is: "Catalyst efficiency low-bank
>. - the oxygen sensors monitor the catalytic converters ability to store
>oxygen.
>Possible causes are:
>1. Catalytic converter defective (Failure possibly due to #2, 3, or 4);
>2. Engine msfire or running condition;
>3. Large vacuum leak;
>4. Engine oil leakage into exhaust-value guide seals, piston rings
>
>Any suggestions on approach to uderstanding and fixing the problem?
>
>I've been considering replacing the plugs & wires. Is this the correct
>first step?
>
>Thanks,
>- Pat
Hi Pat,
I'd suggest that after a drowning, that the most likely fault is the
misfire (of course).
If it was me, I'd be spending time checking and drying ignition
components yet again before spending cash.
Don't know the '99 model but under the distributor cap in most cars is
a good place to start.
OzOne of the three twins
I welcome you to Crackerbox Palace.
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