prelude2.2

So yesterday I took my cluster off and when I took it off I seen a small piece of blue tape on the side so when I peeled it off because I'm curious I see some plastic screws looking things that apparently are not screws but look like they adjust something to a certain setting so I go and spin em and my rpms are now so off lol anyone kno how to set it back to normall BTW there is 2 adjustable screws has numbers 123 or 023 I think?

mherkamp

Those are not screws they are trim potentiometers for the tach and speedometer (notice your speed being wrong too?) The only way to fix them is to get another tach and hook it up and adjust yours till it maches.
GL
Mike

prelude2.2

Does that help?