acts like fuel problem.

[stephen ka wong]

I have park my evo for a few months, when driving today engine cut out at 6500 rpm . Wonder is fuel or tuning problem?

[HMatt]

Define "cut out"

Like hits the rev limit or like jerks and kicks on and off?

[Mike W]

Check or have checked your spark plug gap. Put a full tank of fresh 91 in it. Check your boost to see if it is what it is supposed to be.

Mike W

[stephen ka wong]

Drove my evo today and I turn the boost controller all the way off (Hellman manual boost controller),but the car still over boost, wonder boost controller is bad causing over boost and cuting engine off?

[HMatt]

ok... sooo.... you are overboosting? that is your problem? It will buck when it hits it's limits...

It might just be stuck... You could probably just pull it apart and put it back together or just take it off and knock it around a bit...

[osolokes213]

do you know how to adjust it...if you tighten it, it gives it more boost...looser is less boost...

[osolokes213]

or is it the other way around, i forgot already hahahaha

[apexct9a]

What you need to do is take it to a good tuner shop and get that shit fixed right before it gets fucked up O0

[stephen ka wong]

(-) mean less boost and (+) mean more boost?

[HMatt]

^yes.... usually....

[jamesinger]

What you need to do is take it to a good tuner shop and get that shit fixed right before it gets fucked up O0


+1. Better safe than sorry. It is a cliche but if you aren't 100 percent sure on how to control your boost with a controller that has (+) and (-) symbols on it, you should not be theorizing on the internet about how to fix your car. You can learn a lot by taking it to the right shop. Every time I go to RRE, I learn more about my car and can work out minor issues better.