Hello. Its been raining pretty hard and i was driving my g35 through a puddle. About ten seconds later my engine started acting weird. It wont go over 2,000 rpm. If you go over that it just misses. I drove home slow and made it here. I also turned my car off and on. It started up but reved really high for a second. Will i be ok?? Is my maf messed up. Please help. Thanks

 

i would change out the air filter itself. and let it dry over night then try and start it again

 

Water was on the MAF throwing off the readings. Or the filter was soaked and the water was preventing air getting in. Computer in turn cut back fuel since no air was getting read coming in so you couldnt go above a certain rpm. Let it air out and should be fine tomorrow!

 

I would actually take off the intake and see if there is water in the intake pipe near the throttle body, if there is you might want to open up the plenum and see if there is water there. If there is water in your plenum I wouldn't recommend driving your car until you seek professional help.

 

My neighbor hydrolocked his motor when his AEM intake sucked in water. He needed a new motor. Not sure what the hype is over cold-air intake. The OEM is already cold air. I guess it's the bling factor?

 

pretty much, I've seen dynos that prove no gains over a Z-tube and K&N filter... but there's a lot of money to be made on intakes and if people want em...

OP take the filter off and let it completely dry out--a day or two--then try it again. Hopefully nothing is broken, should be fine unless you completely submerged it

 

I have that lintake. I ended up cutting it to resemble the z tube. during the winter the tip would get wet.

 

If you don't see any evidence of water in or near the intake, but are still worried and want to play it safe... pull all the spark plugs out and crank the engine a few times to blow out any water that may have gotten sucked into the combustion chamber.

 

You should be ok... but in the future, in the rainy season, pull that intake out and go back to stock, the last thing anyone needs is a hydrolocked motor

 

If you can't rev over 2000rpms, you're MAF is either saturated with water and has shorted or it's wrecked completely. When the MAF sensor flakes out, the ECU reverts to safe mode and will limit rpms to 2000-2300rpms until it gets what it considers the right signals.

The ONLY way you suck in a dangerous amount of water to the motor is by completely submerging the filter. The engine does not create enough vacuum to pull a significant amount of water into itself unless the filter is completely submerged. Hydrolock will stop a motor instantly. Water doesn't compress therefore it stops the motor instantly. If the engine doesn't stop, then you didn't hydrolock the motor. What probably happened is you went through a big puddle and the filter got very wet and as you drove the soaked filter released lots of water droplets into the intake which accumulated on the heated element of the MAF. If you've got an oiled filter, oily water probably is all over the MAF too.

My recommendation is to pull the filter and let it dry. DO NOT reoil it. Remove the entire intake tract up to the throttle body and make sure there's no accumulated water. Pull the MAF sensor and spray it with electronics cleaner and let it dry for a few hours. Reinstall everything. If the car still doesn't rev past 2000rpms, then you'll need to replace the MAF sensor. And finally, trash that POS CAI and put the stock intake back on which makes more power.