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General E46 Forum
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Old 04-09-2013, 03:34 PM   #1
ChrisDinan
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I drove through some water and my car wont stay running now

I already replaced the spark plugs and oil after removing one at a time while cranking to get rid of any water inside. I dont have any codes coming up on my obd2 and my exhaust still spits little sprays of water when revving at high rpm. I got her driving again on the freeway, but when come to a stop/idle itll cut out... (also have replaced my fuel filter few weeks ago) I'm hella lost on this
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Old 04-09-2013, 03:44 PM   #2
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How deep was the water?
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Old 04-09-2013, 03:47 PM   #3
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6-8inches prolly. Rain run off in my alley
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Old 04-09-2013, 03:52 PM   #4
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My intake sits right off the ground
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Old 04-09-2013, 03:56 PM   #5
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6-8inches prolly. Rain run off in my alley
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My intake sits right off the ground
Class of 2013.
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Old 04-09-2013, 03:56 PM   #6
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My intake sits right off the ground
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Old 04-09-2013, 04:05 PM   #7
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well. Lol you ruined your engine. Ever thought why the factory air box is where it is?
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Old 04-09-2013, 04:30 PM   #8
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I would recommend cleaning your MAF. My car was idling rough (no codes) so I cleaned the MAF and it ran fine after.

Since your car is still running you may have gotten lucky. Now learn your lesson and don't run an intake that is inches off the ground because people here say you'll gain 1-2hp.
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Old 04-09-2013, 05:32 PM   #9
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I would recommend cleaning your MAF. My car was idling rough (no codes) so I cleaned the MAF and it ran fine after.

Since your car is still running you may have gotten lucky. Now learn your lesson and don't run an intake that is inches off the ground because people here say you'll gain 1-2hp.
But... but.... Racecar!
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Old 04-09-2013, 07:46 PM   #10
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well. Lol you ruined your engine. Ever thought why the factory air box is where it is?
This.

Now go back to factory airbox. Or get a BMW performance or Dinan High Flow if you absolutely need an intake.
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Old 04-09-2013, 09:10 PM   #11
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Old 04-10-2013, 06:04 AM   #12
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Genius ^

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Old 04-10-2013, 06:09 AM   #13
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This.

Now go back to factory airbox. Or get a BMW performance or Dinan High Flow if you absolutely need an intake.
^
This is what I would consider doing if I were you. If you have lots of running water where you live it does not make any sense to have your intake sitting right off the ground No wonder you're having issues now....not good to suck in water through your intake....

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Now this is a funny pic! I wouldn't recommend doing this though...
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Old 04-10-2013, 07:55 AM   #14
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Did you not slow down and go like 2 mph through the water? Or did you drive fast through it?
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Old 04-10-2013, 08:18 AM   #15
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OP, if you're lowered and had intake in the water...I don't know what to say.

I hope that if you keep it running on the freeway a while longer you'll vaporize the water and maybe get lucky.

Add Techron to your fuel as per instructions.

Return intake to stock, or at least lift it up where it goes...paper filter please.

So I've read that old timers used to spray water into intake as a way of knocking the carbon off.

BTW, those instincts you didn't have about the creek that runs in your alley...don't forget about your car next time. If need be, drive it up a ramp before the next monsoon.

And I'd probably change the oil again if it was me.
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Old 04-10-2013, 09:04 AM   #16
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Old 04-10-2013, 09:28 AM   #17
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I may consider doing that dual intake on my roof like that celica. I bet you that must've added like 20 HP
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Old 04-10-2013, 10:07 AM   #18
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Old 04-10-2013, 10:38 AM   #19
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When I ford fjords, my exhaust tips sit in the water, but with my helium filled tires, it will float in 2'3" of water and the exhaust propels it.

Of course this is kind of risky to do, and you need to seal up some holes carefully (wine corks work great...with a dab of rtv on them). Stock intake is fine as long as there aren't any waves.
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Old 04-10-2013, 12:07 PM   #20
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So I've read that old timers used to spray water into intake as a way of knocking the carbon off.
I can't believe you said that!

Yeah, we used to do this, back when compression was 8.5:1 and we didn't have computerized fuel metering, so we ran everything rich.

Don't pour water into your intake.
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