Originally posted by tab@Dec 25 2003, 06:15 AM
don't know exactly what signal the oil pressure switch sends, but I can tell you more about the temp sensors. You have a sender, it's below your distributor. It sends the signal to your dash. You have a sensor, which sends the signal to your ECU. You have two switches, which in the USDM cars, sends a signal to your fans individually. In JDM, you have one switch. If you hook your old fan switch wire to the solenoid, you fan will be on full time. I did the same thing in the beginning. Nice fit huh? Pull that fucker off. Use the F22 waterneck in the front and put the switch back. Then, figure out where the VTEC goes, or vice versa.
Also, my VTEC does not engage until the car is up to temp. Make sure you are getting the right temp signal to the ECU. Just a thought.
I am willing to bet that you were close enough before to make VTEC work, so something changed. I'd double check grounds, connections at the ECU, your VAFC, and where ever else you made connections.