I drive a 2005 Evo with right at 3500mi on it. Iwas just leaving school, going about 5 mph and got on the car a little leaving the parking lot. The car bogged down as I heard a loud WHOOSH sound, almost sounded like somebodys blow off valve or something. The car now idles fine but will only go about 20mph and 1400rpm at which point it just starts skipping and jerking, staying at that speed. I was close to my house so i just limped home. I installed a Forge MBC last week, but other than that I am stock. Any ideas?

 

Cat in your air intake!

That's weird man, take it to the dealer i'd say, but if you can only go 20 that might not be an option.

 

did you check all the piping...specifically the piping to your intake\bov\intake mani?

 

Have you popped the hood and checked anything?

 

boost leak. check around the bov since you just messed with it.

 

blew off a boost tube some were
thats what mine did and it was doing the same thing
look at all the ic piping look were the bov hooks to the ic piping

 

I haven't checked **** yet, just waiting for the car to cool off.

 

yeah hose came loose

 

well take a look first, things might be quite obvious once you pop the hood.

 

God I hope thats what it is. That is what i figured, simply because of the loud sound.

 

do this put your stock bov on and take it for a spin and if the problem still persist just take it to the dealer and telll them your problen but whatever you do dont tell them about the aftermarket bov you had on

 

sounds like one of the charge pipes popped off....check all ic pipe connections.


emery

 

It sounds like you hit boost cut and it stuck.....Check your lines, one might have came off.....Was your car cold.......The Evo's have a saftey feature that if they are cold, they will boost cut very early.......Don't waste your time with the dealer, they will tell you BS and charge you because you moded your car and something happened.....Keep us informed.

 

I have the stock BOV on it, just added a boost controller

 

Intercooler pipe connection........WHEW! Thanks alot guys.