hey guys, i was driving home today from work and i stopped at a stop sign and when i put it in first and drove it just stalled, at first i thought i just stalled on accident or something but i tried to turn it on and it barely turned on like the battery was low or something, then i had to rev it up pretty high to get it going in first gear, and then when i slow down to nearly stop it stalls everytime, i dunno what the problem is but the car feels extremely slow, theres also this weird knocking type noise coming from the engine, it gets faster as i rev it up higher and then it slows down when i let go. if anyone has any idea what it would be please post, thanks in advance. oh by the way, if its any importance i have an up pipe, downpipe, apexi catback and ecutek reflash, thanks!

 

take that to your local dealer asap!

 

Eeekkk, what the guy above me said. Take it to the dealership or trusted mechanic asap. Maybe one of the smarter guys on here can help you. My advice would be do NOT drive it.

 

go get a compression test and if they can do one a leak down test with that. if you're getting a knocking you're running lean - what are your mods? btw if you have mods now would be a good time to take them all off and revert to stock so you can get warranteed work.
it would sound like you have a cracked sleeve, ring, piston or something worse internally... but that's a generalization could be a multitude of different things. but that's what it sounds like. also check your plugs they'll tell you a lot about running lean but when your engine knocks/ pings ='s you're running lean ='s not enough a fuel so you'd be detonating..

 

sounds like detonation.

 

hey simon, you had the same problem huh?

 

try checking the alternator sometimes that can do the same thing. you may have messed up the voltage regulator in the alternator it happened to me.
dubrexer is right but this is something simple you can check

 

Check your crank pulley blet? Underdrive pulley belt?