I want to test if the problem is the wire going to the oil pressure sensor. I figure if the vtec oil pressure sensor gives a ground with the key is in the 'on' position that I can tell if the problem is the wire.

Does that sound correct?

Nick

 

That pressure switch is closed when the pressure is low. One of it's wires goes to ground, I think at the thermostat housing. Check continuity of that wire to ground. Check continuity across the 2 pins of the switch when the engine's turned off.

The ECU wants to see that circuit go open when it has enough oil pressure.

 

thank you for the reply, its very helpful!

Nick