I have a r56 MCS that has several modifications: Alta FMIC, Alta CAI, Greddy Type-rs blow off valve.

Ever since I installed them they have been running fine until..

Yesterday, I was driving around and pushed the MINI to about 6000 rpm, when I heard this loud pop. then the engine seemed to become sluggish and the stock bypass valve could no longer be heard. After parking and restarting the engine, the check engine light came on.

Im assuming the car's stock bypass valve blew or something.

Btw, the car runs normal (no stalling or awkward engine idling) after this event. Just the CEL is on. Also, no strange sounds or boost leaks seem to be heard.

Has this ever happened to anyone? anyone know of a solution or what the problem may be?

 

I seriously doubt that. You probably blew off a pipe or coupler. If your car isn't making boost you won't hear the stock dv.

 

I see. I also for got to add that when I push it to around 3000 rpm, I can hear the installed greddy but still cant hear the stock dv

 

Greddy valves are notorious for leaking if they're not set quite right. Get the car scanned and look over all of your pipes, I really don't think you blew up your stock dv.

 

either way. something isnt right, since the stock dv is suppose to operate in normal boost conditions. I rechecked my pipes and seems like no leaks. idk. what do you think?

 

sounds like you blew off or almost blew off one of your intercooler tubes.

 

just checked and seems like the tubes are fine. and sounds like there are no leaks when engine is running

 

Does the car seem slower than normal?

 

yea. the throttle response is not as it was before the incident.

 

POP = hose blowing off.

 

do you know which one it might be?

 

LOL. Yes. TUrbo to hotpipe, hotpipe to fmic, fmic to cold pipe, cold pipe to throttle body. Its one of those.

 

Yeaa sounds like a boost tube popped off, happend to me a long time ago. Its nothing to worry about, just find the piece thats loose and tighten that clamp! Motor on

 

sweet, all fixed. thanks to everyone that helped. i wouldnt have known what to do since im new to minis.

 

Check the hose coming off the turbo that goes to the intercooler. Chances are the clamp came loose from under it. It looks ok up top but under the silicon it comes off if you dont install it correctly.

 

what hose came off?

 

the hot side of the intercooler where in connects to turbo ouput.

 

Yeah, it took me a couple of tries to really get that tube suckered on. It was a terribly tight fit!