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If you know the bearing is bad I wouldn't wait until it completely goes before changing it. Then you'll end up with an overheated engine and warped head.

And that would cause my o2 sensors to be getting bad readings? I think we're getting on the right track here.

I'm developing what seems to be a misfire "pop" when I release the accelerator pedal. Like I said, #1 was the most flooded. Is it possible I blew a piston ring? There for not allowing all the fuel to combust in turn having the second o2 sensor read to much unburned fuel?

I can completely block the air from entering the intake box, but it's still runs after bogging for a split second. It sounds like air is being sucked in from behind the i/m somewhere.

It came back on today. It seems to come back on after about 30 miles of driving. It seems to start guzzling fuel like a champ too whenever it comes back on. I read elsewhere that somebody who had this code (P0420) had a blown i/m gasket. How would I know if that's the case?

I just ran across this link. That was the exact code. Why can't I just change the secondary o2 sensor? I think I'll check the sensor at the pre cat first since that's closest to where the water was.

yup.

No...I'm new here...

Are you supposed to be telling us that? :O I'm a photographer and digital print tech. <---"It's more than just operating a press."

Why? The system actually kind of makes sense, but I'm not going to be the guinea pig.

My light came back on again today (driving fine) so I had it checked. Basically it said my cat isn't working right. When I changed the plugs I again reset the light. Would I be safe to assume it's just water working through and it'll be fine?

I'd say she's running at about 85-90% now. She's a little jumpy at low RPMs (which is how I drive :( ). I'm sure an oil and plug and wire change will fix the rest. Except for the first response you guys have been a big help. I might just stick around here and do a little learning. I come from...

I'm not seeing that anything is coming out. Before you told me to remove the f/p fuse I had cranked it and I saw a puff of smoke come out of 1. When I just took everything apart again there was still a little bit of water on 1's plug, albeit not nearly what it was before. Am I going to need to...

Is that fuse the 30A labeled INJ OR FIP at the front of the fuse box under the hood? I don't have any sort of owner's manual or book.

So I decided to pull the plugs and the prognosis isn't good. I'm not sure how the cylinders are layed out, so we'll pretend if your looking at the engine from the front of the car it's 1-2-3-4. 1 was flooded. I stuck my socket in there and it pushed out some water. 3 wasn't quite that bad, but...

Crap! I was able to clear the code by disconnecting the battery. At the same time I disconnected the MAF. I took it for a quick drive and it was choking pretty bad. When I parked it stalled.

Shane: Thanks for the nice response. The only thing I've removed from the car is the intake piping. Period. I'll check the MAF because I noticed the wire was pinched in the air box cover when I got the car in November. I haven't had any problems so I haven't concerned myself with it. I...

Thanks. I never thought of doing that at 9:30 on a Saturday night. :rolleyes: What can hydroplaning effect that would cause a CEL?

I did a bit of hydroplaning tonight and immediately my CEL started flashing, then went solid, then back to flashing. It's running like dog poop. All 4 cylinders seem to be firing. Only "mod" is the intake piping is removed up to the air box. Any suggestions? TIA