See,

I recently Just got this car. It was a Wiring Catastrophe upon buying it. The shop that wired it...Well didnt do too good of a job. How do you know if the pressure switch is working or not? I've heard of being able to wire up vtec through a toggle switch. Will that work? To it's normal operation? I am just puzzled over this it has gotten me frustrated. I'm not really an expert on all this wiring but if i have schematics i can do alright but still hesitant..need second opinions. Oh and none of the lights on the guage cluster come on..only the speedo works and the cluster light for night time...but there are no check engine lights on the ecu