I hate sensors! Any way to avoid replacement?

[nosuchthingasafreeAltima]

So yeah, went out to watch a killer storm with my soon to be wife in my Altima. While on my way back I didn't see the 2 1/2 feet of standing water on the road. From there on out the car began to knock and sputter. Between both of us having to work, plan a wedding and school, I didn't have a great deal of time to explore this new calamity so we've been driving it as is while getting appx. 10 miles to the gallon. I ran 3 gas treatments through it and that proved pointless. Bearing in mind that the IAC and the rear oxygen sensor was replaced very recently and I have pieced the exhaust system from the catalytic converter back this was the last thing I needed. Engine light has been on since the exhaust fell apart and despite replacement, still throws an oxygen sensor code but didn't effect performance. Following this soggy experience it then threw a knock sensor code. For ****s and giggles I then put in 3 gallons of premium and some octane booster; mysteriously it seems to have returned to normal "single-engined- plane" sound and performance. I can't afford to keep putting premium in this car and while octane booster can be bought rather cheaply, is there a way to avoid the $178 knock sensor that also happens to be very hard to get at on top of its high price?

[Darius]

You could have sucked water into your engine which would be bad. Other than that, the motor is pretty much water proof. Have you checked the plugs for fouling?

I highly doubt it's the knock sensor. My gf's knock sensor code was thrown but it was because she had a bad injector and it was causing the engine to vibrate irratically. I wouldn't worry about that because it's probably something else.

[evenplayn]

Do you have a CAI? Just hoping you didn't suck up too much water.

Try buying a spray can of Air Intake cleaner from a local auto parts store. Not to mention it is very handy to have if you use an oiled air filter.....