Originally posted by Jon [in CT]
The ECU will go into a learning mode when the following conditions are met:
- Manifold Absolute Pressure is greater than or equal to 900 mmHg (17.4 PSI)
To clarify Jon's statement (I'd hate for someone to get confused...) the pressure needed is 17.4PSIA, or pounds per square inch absolute.
That'd be around 2.7psig, or pounds per square inch gauge, on a boost gauge/meter.