Perfect Pass

[Justin supra launch ss]

I have a 2002 Supra Launch SS. I'm pretty sure it has perfect pass. It has 2 MPH gauges and 2 silver knobs on the center of the dash. Does anyone know what these two silver knobs are for? Also, how can I tell if my boat has perfect pass and if it is working??

[tg0824SSVGG]

I don't KNOW the answer to your question, but did you look here?

http://supraboats.com/library/downloads/SupraOwners_2002.pdf

Actually, that document says the 2 knobs are for calibrating the 2 speedo's.

Some of the dashboard photos show Perfect Pass, but in my experience, these are pretty
clearly labelled as PP's ...

[Justin supra launch ss]

Thanx.... When I drive and turn the knobs the speedos don't change?? One speedo works fine... I'm pretty sure I don't have pp there is nothing indicating that I have it.