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Full boost loss

2K views 11 replies 6 participants last post by  jordyimge 
#1 ·
2016 VT. Sometimes when im accelerating, my boost completely cuts out and the car acts as if its n/a, but when I let off the gas my bov still discharges as if im still on full boost. But once I put my foot back on the gas, boost comes back. Does anyone know what the heck is going on here?
 
#8 ·
check plugs & gap, when was the last time you changed coils?

what fuel pump?

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#10 ·
This will usually happen due to boost discrepancies, fuel rail pressure discrepancies, or crank sensor discrepancies. Boost issues will usually throw a code the quickest so most likely one of the other two.

If it were mine I'd replace the crank sensor as preventative maintenance as it may be a cause of this anyway then see if it still does it. If it does then it is most likely fuel pressure related if you're getting no code for it as the boost pressure being off that causes this is more rare but will throw a code quicker.
 
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