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Discussion Starter · #1 ·
When I step on the gas and start to make boost it will make boost for a couple seconds starts to stutter and I let off the gas and back on it and doesn't have power.

Anyone know what might be the cause of this?
 

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Probably a vac leak.
 

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Discussion Starter · #4 ·
idle is normal,
I make boost and is steady and they it starts stuttering so I back off then it won't make much boost then I let off again and then it will make boost and cut out.
I thought it might be a vac leak.
 

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Discussion Starter · #8 ·
Changed the spark plugs and coil packs and still doing the same thing.
It doesn't do every time though which is weird.
 

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N75 Valve
Most likely this. I would also check the Diverter Valve. Take it off, push in the diaphragm, then plug the top nipple where the vacuum line goes to and see if it holds in place. If it holds, its still good. I would also do the N249 bypass while your at it.
 
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