So from my understanding I cant adjust the VTEC engagement point with the stock Emanage Ultimate wiring harness from an AP2 greddy kit. Ive tried searching for a DIY to fix this and I may be lame but I havent found anything. I dont exactly feel like buying a boomslang harness either. Thanks for the help in advance

 

I have been investigating this myself, I figured I would start going through the harness and hook up the output and input and use the NVCS table to adjust it.

 

That's a good idea. The problem with the harness right now is that it doesn't fool the oil pressure sensor output. It will change vtec the first run, but then imediatly throws a cel once you lift due to the oil sensor.

 

I will have to do some research on this but if you use the analog out for the oil pressure sensor you should be able to simulate during the difference between the old engagement point and the new one.

 

hi did you work out how to do this i could do with a diagram to connect my ap1 vtec up so i can move the start point up to 8000 rpm so i stop losing power, ohh the joys of tuning cheers Lee

 

Would like to do the same. Just have a normal greddy harness though.

 

there must be the info on here somewhere. itlynstalyn are you running the greddy kit ?

 

You need to wire the VTM outout from EMU to the ecu.
1. Cut the VTM wire going to ECU ant tape the oil sensor side of it
2. Wire the VTM Output pin of EMU to the VTM pin of ECU
3. Set jumper 17 to "1-2"

 

Cheers you make it sound easy mate any links 2 the ap1 pinout ps tape the oil sensor side of it ???

 

I think there is a repair manual online on hondahookup the pinout is in there. Sorry if I did not make it clear but I meant to cut the vtm wire going to the ECU connect the ECU vtm part to the emanage and tape the part of the wire you didn't use.Look at the emanage installation for a drawing . If in trouble let me know and I'll make a drawing for you.