Osmosis
New member
I've been tuning the chip in my ty for sometime now. I'm finally getting close to perfecting my tune. I’ve noticed that my boost pressure was surging between 19-22ps. I could actually feel the surge in pressure during my runs at WOT. I can seethe surging in my tuner pro logs too. Kind of a saw tooth appearance. I had my internal waste gate arm almost fully tightened and I’m using a boost valve with the higher psi spring to control my boost pressure. I decided to "properly adjust my wastegate spring and slowly increase the tension to see if I could remedy this problem.
I loosened the waste-gate actuator arm to the proper adjustment (7/8 of the arm covering the hole). Went out for a drive and my boost was climbing past 22. I put the lighter spring in the boost valve and completely loosened the boost valve so my pressure should have been aprox 12-13psi. Nope, boost pressure shot Straight up to 25psi??? I put my stock boost solenoid on the truck. I held 12-13psi steady for a bit, then my boost pressure ra suddenly climbed over 20psi, so I pulled my foot out of it. I then reversed the vacuum lines and I got a solid 11psi. Pulled it into the garage and I replaced all vacuum lines. NO change. I then tightened the wastegate actuator to the 1/2 way point of where it initially was. No change.
I've no idea what's wrong? I’m guessing my wastegate spring actuator is bad?
HELP
:rant:
I loosened the waste-gate actuator arm to the proper adjustment (7/8 of the arm covering the hole). Went out for a drive and my boost was climbing past 22. I put the lighter spring in the boost valve and completely loosened the boost valve so my pressure should have been aprox 12-13psi. Nope, boost pressure shot Straight up to 25psi??? I put my stock boost solenoid on the truck. I held 12-13psi steady for a bit, then my boost pressure ra suddenly climbed over 20psi, so I pulled my foot out of it. I then reversed the vacuum lines and I got a solid 11psi. Pulled it into the garage and I replaced all vacuum lines. NO change. I then tightened the wastegate actuator to the 1/2 way point of where it initially was. No change.
I've no idea what's wrong? I’m guessing my wastegate spring actuator is bad?
HELP
:rant: