What up guys...need some help. I have a 99 Civic Si, and I just bought few autometer gauges off ebay to pretty up the inside. I have the Vac, and electric Oil pressure. Which Vac line do I hook it up to in the engine bay that can use the gauge to monitor the vac of the engine? And where is the Oil pressure fitting...I have the electric one that has a sender. But I heard I can tap it into the existing computer wires. Please help...thanks guys.

 

What VAC do you want to watch specifically? I would sell that guage and get something useful like a fuel pressure guage. I am not sure what thread it was for the oil but if you do a search you will find it. I just saw the topic today.

 

u have to put the oil pressure sender to an oil pressure source... u cant tap into the stock sensor

 

http://www.theoldone.com/articles/oilpressure/