Turbo Issues

[bmx0964]

My turbo seems to bounce between 6-8psi when at a constant throttle (most noticeable on the highway). Does anyone know what would cause this?

[bmx0964]

Anyone got any ideas?

[jamiesharley]

i'm havin the sort of the same problem but it also affects my rpm, not just the boost. Also it's not just at 6-8 pounds, it fluctuate a pound or 2 no matter how much boost it's getting. Someone please help

[ajpu1983]

Is the engine surging?

[bmx0964]

ya mine has kind of starting happening at a larger range of psi. my truck is not what id call surging, more like miss firing on a cylinder or two (this is only around 2k rpm)