Sudden Lose Of Power In Higher Rpm's

[BlackMSP1]

Hey everybody this is my first post. i just bought an 03 MSP about a month ago and installed an injen CAI on it. recently i have had a sudden complete lose of power when i accelerate fast. i was told this could be fuel cut??? someone else told me it has to do with the CAI??? PLEASE HELP!!!!!!!

[greasemonkey524]

Does it feel like the car just hits a wall or is it just slower than normal?

[CrazyCaker]

sounds like fuel cut to me. are you running stock boost? does the car feel faster just before the power cuts, this might be your wastegate actuator getting stuck. do you have a boost gauge?

[orng1]

do you have a boost gauge?


I second that, so.... do you have a boost gauge. It would be way easier to diagnose the problem if we know what the gauge is doing when the problem occurs.

[BlackMSP1]

1) it feels like i hit a brick wall
2) no boost gauge yet all i have done to the car is CAI and turbo timer

[BlackMSP1]

its feels like a brick wall, almost like a slam on the brakes.....and im running stock boost with no boost gauge

[CrazyCaker]

fuel cut. I suspect your boost is spiking. might want to consider a boost gauge as an add-on. see my last post.

[AcolyteMSP]

Try resetting the ecu, take the nagative battery cable off and leave it off for 30mins or so then hook it back up and go for a drive, it will go back to how it was pretty fast so pay attention to how it drives right away. Also make sure you are running 91+ octane.

However it does sound like fuel cut.

This cars factory tune/ecu is garbage!

[BlackMSP1]

thanks everybody ill try reseting the ecu and reply back in a few hours

[orng1]

its feels like a brick wall, almost like a slam on the brakes.....and im running stock boost with no boost gauge


Yeah I think your hitting fuel cut, sounds like a bad actutor. You need to get a boost gauge on the car, it helps so much.