Ok, so I have a '99 Type SH, and I was driving the other night and got caught in a flash flood. The car stalled out and sat in water with half my tailpipe submerged. After my dad and I got the car free, we eventually got it started (thank goodness it didn't hydrolock) and got it home. I let it dry out overnight, and today I cleaned the cone filter and let it idle at full temp. for about 30 min. I have a Greddy Evo II exhaust and an AEM intake. Now my exhaust is a lot louder then it was before, and the car feels restricted power wise. I think my resonator may be full of water, but I'm not sure. Does anyone have any ideas/suggestions to try and get it back to normal? I'd really appriciate any kind of help I can get here.

 

If your car starts and runs, take it out on the freeway on a nice, warm dry day. Get it up to 60-70 mph and set the cruise for about 20 miles. You might even want to keep it in 4th and not in 5th. This way your entire intake/engine/exhaust system gets a chance to warm up to a steady running temperature and burn out any moisture that may be causing problems.

 

ya, just go on a nice long drive.

 

That's what I figured. I did that, maybe not for that long or that fast, but my exhast is quieting down a lot. There are still three problems though. The first is that I'm almost positive my VTEC isn't kicking in. I can always hear/feel it and it's just not there... the second is that it's been idling rough ever since. Nothing bad at all, but I can feel and hear the difference. Anything I can do about that? Finally, the last problem is the rev limiter/fuel cut-off. I thought these were electronic and factory set, and not changable by the ECU. Every since I took the lude swimming though, my revs are capped at about 300-400rpm before redline. I always used to be able to take it a bit OVER redline before the fuel/rev cutoff kicked in. What's that all about??? Also something I should probably say is that I've had my CEL on for a bad EGR valve. It's on special order and on its way, but I'm not sure how that valve might affect everything else...

 

That deffinately will affect everything. That is most likely why you are getting the early rev limit. The ECU is safeguarding the engine. You shouldn't really be taking it through vtec if you are throwing codes. Just my advice.

 

have you done the obvious like checked/changed your oil, tranny fluid, coolant, etc? if the car was waterlogged you might want to consider that.