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weird boost problem

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JDSfastGN

Well-Known Member
Joined
Jun 16, 2001
Messages
3,506
Well i recently got my tranny back together and am getting the car slowly tuned again. Anyways right now im only running 13-14 psi just to be nice to the tranny while its new. Here is the problem, if i floor it on the highway say 65 or so , it drops from OD to 3rd and holds steady boost all the way through the run, but if i get on it enough to downshift and let it hold in 3rd, and then punch it, the boost shoots to 17 or so and holds there and im getting 5-7* knock. I am running through the solenoid, and am planning on hooking up the wastegate tuner style tommorow to see if that fixes it. Does this sound like a bad solenoid, its pretty knew but that doesn't mean much. any ideas would be great
 
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