Does any one know, ('casuse it wasn't in the sticky,) how high your boost gauge is supposed to go? Mine doesn't go past 0 on my 01 SSEi. Is my solenoid bad, or is this normal operation? It hovers around -10 at idle.
The Boost Gauge should indicate in the positive area (approx. 7 ) when in boost mode and at idle -10 is normal. You could check the boost control solenoid electrical connector is securely made up to the solenoid as a starting point.