i have a 94 civic coupe with a d16z6 and i have gauges in but dont know how to hook them up they are all electrical stweart warner 2 5/8" gauges i got the lights to work and they have power i just dont know if i hook them to the motor or the ecu what one would be easyer. i only have to run 3 wire and they are the senders

i have an oil pressure, water temperature, and a air/fuel ratio meter

can somebody help

 

did you check the websites for the makes of those gauges? they usually tell directions on there website