Turbo sputtering sound at high boost

[evan546]

Hey guys last night i was going for a little drive when i noticed a sputtering noise coming from the turbo or somewhere in that vicinity. This sound is impossible for me to record due to road noise i was wondering if my spark plugs were improperly gapped could this cause an audible noise?

-Thanks

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[MAPerformance]

Sounds like knock, and throttle closures due to your tune. Can't say for sure without looking at a log.

 

[evan546]

I was just driving it and it started iddling at 4-500 rpms very rough idle and it wouldnt accelerate i got a code p0303

 

[MAPerformance]

Just as I suspected, knock. That code is for Cylinder 3 misfire. You must have some STRONG knock in order to throw a code for it. Highly suggest you get that sorted out.

 

[evan546]

Just as I suspected, knock. That code is for Cylinder 3 misfire. You must have some STRONG knock in order to throw a code for it. Highly suggest you get that sorted out.

do i go to the dealership? what do you suggest i have a tune

 

[MAPerformance]

do i go to the dealership? what do you suggest i have a tune

I suggest you have your tuner fix it. Too much timing, too much boost, and not enough fuel will cause knock.

 

[evan546]

I suggest you have your tuner fix it. Too much timing, too much boost, and not enough fuel will cause knock.

as for the sputtering noise it sounds more like if you flipped though the pages of a book i don't know what it is its been happening even before my tune

 

[Brad]

Sounds like flipping pages? Almost sounds like surge..which is really unlikely

 

[evan546]

i have a boomba bov adapter could that be why

 

[evan546]

I suggest you have your tuner fix it. Too much timing, too much boost, and not enough fuel will cause knock.

How much boost is too much boost?

 

[MAPerformance]

It is your throttle closing, which is making your BOV flutter slightly because of backpressure in the charge system. If your throttle body is closing that much to protect itself you have some serious issues going on.

 

[MAPerformance]

How much boost is too much boost?

Depends on the tuner, they set the limits.

 

[evan546]

F@$#*&*^*K!

 

[Brad]

How much boost are you running?

 

[evan546]

How much boost are you running?

22.48 psi

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