Fluctuating Boost
#1
Fluctuating Boost
I've noticed in the last two times I've driven the car that my boost is acting weird.
I normally put down about 18 psi.
now, it'll fluctuate between 10 and 15, almost "surging" between the twowhen I get on the gas.
What should I look for, for a potential cause?
I normally put down about 18 psi.
now, it'll fluctuate between 10 and 15, almost "surging" between the twowhen I get on the gas.
What should I look for, for a potential cause?
#3
RE: Fluctuating Boost
I guess I should have mentioned...
I have samco hoses (that's for the TBB, right?)
and
hybrid BOV/DVs.
Also, I found that it'll fluctuate from 10 to 15 then stay at 13.
or
it'll fluctuate 10 to 15 and go to 18 and stay there.
I have samco hoses (that's for the TBB, right?)
and
hybrid BOV/DVs.
Also, I found that it'll fluctuate from 10 to 15 then stay at 13.
or
it'll fluctuate 10 to 15 and go to 18 and stay there.
#8
I have similar problem, running giac file with samco hoses and 710N's, boost hits 20psi then drops to ten and back to 15, then up and down from so on.
and it also holds a steady 16psi sometimes after a 19 spike.
I just replaced N75 as well, and both O2 sensors, with no change. I pressure tested and can't hear any leaks.
and it also holds a steady 16psi sometimes after a 19 spike.
I just replaced N75 as well, and both O2 sensors, with no change. I pressure tested and can't hear any leaks.
#9
Have you gotten your car scanned to check for fault codes? Does you car feel like it's misfiring? You could have a bad spark plug or maybe a spark plug that is gaped too large. Bad EGR sensor, O2 Sensor, Maf, fuel injector(s). Hard to tell. Get you car scanned and post of the results for us to look at.
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