D16Y8 in EG swap, VTEC not working
Please move this if it is in the wrong place, I am new to this.
I recently purchased a 1993 civic with a D16Y8 and P28 ECU and vtec was working with no CEL. I noticed that the 2 pin pressure switch didn't have a connector so I got one and plugged it in and decided to do the wiring correctly as he had it going across the strut tower and I wanted to run it through the firewall.. I checked the ECU wiring and found that he had pins A4 and D6 connected and only going to the vtec solenoid. I redid the wiring and started it up and the CEL came on so I jumped the blue diagnostic connector and got code 21. I tried reverting back to the way he had it wired (he had it without pins in the ecu connectors, just wires and I kept the pins in.)and it still came up with the CEL after leaving the ECU unplugged for a few minutes. I have confirmed that the Solenoid is working(I heard it clicking when I applied 12v to it) but I still have the CEL after this. I am at a loss on what to do, but I am wondering if the pressure switch is faulty because he had it hooked up like that. Any help would be greatly appreciated, thanks! https://cimg8.ibsrv.net/gimg/honda-t...a5297c2760.jpg This is how I wired the VTEC in, please correct me if this is wrong. http://www.phearable.net/tech/wiring/vtpsbypass.gif This is how he had it hooked up.' Thank you very much for your time. |
Re: D16Y8 in EG swap, VTEC not working
Update on some information:
When I was putting the motor in I did not connect the VTEC Solenoid and didn't pop a CEL I have verified that the screen is not clogged and the oil is full and clean(it is a brand new motor) The wiring is soldered securely and has good contact I do not know where it redlines or if it activates VTEC because I am still breaking in my motor I am starting to think it may be my ECU since it happened the first time I unplugged it? I don't know I am confused with this. |
Re: D16Y8 in EG swap, VTEC not working
Update:
I figured out what was causing this issue. The pins on the ecu were not touching the pins on the harness, I bent the pins on the ecu down a slight bit so they would make contact and CEL went away! If you are wiring VTEC in a swap make sure the pins are touching. |
Re: D16Y8 in EG swap, VTEC not working
good job on diagnosing.
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