Found a dent in my waste gate control actuator
05-26-12, 10:12 PM
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Found a dent in my waste gate control actuator
I've been messing around for quite some time to get my boost problems sorted out Seems my primary kicks in quite well considering the latest thing I found. Then around 3500rpm in transition stages it lets out a bog and I have to let off. And creep the peddle down to keep going. Then the secondary seems to come online but don't hit nearly aswell as the primary. I'm getting a spike over 14-8-8 pattern. Really thinking about single turbo convert!! But my car is stock and I always wanted a fd twin turbo. It would just be nice to see what it was like new!!!
05-26-12, 10:21 PM
#2
i would start by addressing the 14psi spike, check to make sure the right most(driver side one) solenoid on the pack of 2 at the passenger side front of the UIM mounted just underneath and behind that vacuum canister behind the alternator for broken or disconnected clips or kinked lines.
next check the pill in the boost line between the charge pipe and the wastegate actuator, sometimes the pill gets turned sideways and blocks flow resulting in boost spikes.
lastly check your main cat to see if it is gutted and if the car has a downpipe, this still should not result in 14psi though but it's a start for boost creep.
pretty sure the wastegate arm has a bend in it naturally, a picture would be helpful though.
usually i find transition boost issues are a result of boost leaks, but that does not explain the spike.
next check the pill in the boost line between the charge pipe and the wastegate actuator, sometimes the pill gets turned sideways and blocks flow resulting in boost spikes.
lastly check your main cat to see if it is gutted and if the car has a downpipe, this still should not result in 14psi though but it's a start for boost creep.
pretty sure the wastegate arm has a bend in it naturally, a picture would be helpful though.
usually i find transition boost issues are a result of boost leaks, but that does not explain the spike.
Last edited by RotaryEvolution; 05-26-12 at 10:23 PM.
05-28-12, 06:26 PM
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It's not the arm that's bent it's the actuator where the vaccum line plugs in the whole part has a big ding in it. Pills are good as far as I can see. I think I better change out the whole actuator
