My car over boosts up to 20psi w/stock wastegate.What are some common problems I can check?Also my BLM is constantly at 105 I heard incorrect fuel pressure can cause this,sometimes at low cruising speeds it will go to 117.Can anyone help?
1. Are you running a stock boost solenoid?
2. Have you checked the condition of the rubber 'Y' boost control hose?
3. Is your wastegate rod adjustable? If so, have you tried just turning it down?