i have a 2000 civic si and i want to remove my vafc, can i just unplug the control unit form the wiring harness conector and the ecu go back to stock after resting, by pulling the battery supply.

 

Disconnect all the wire taps and then you will have to reconnect the MAP sensor wire and vtec wire back together.

 

ok schmoo heres my problem, i had the afc tuned by a shop, car ran great, then i put a skunk manifold and 68mm tb on the car and the check engine light came on and it idicated the car was running lean. so i detuned the fuel to 0, put the stock tb back on and it cleared up the problem, next the car has been running alittle funny and the other night the check engine light cam back on and it indicated vtec system malfunction, well come to find out the air was still adjusted on the afc, so i need to take the afc out and take it to the local honda dealer to find out wats wrong with the vtec system. anyway when i remove the afc will the ecu contain the stock settings or will it have the wrong afc settings in it.

 

so what do you think i need to do remove the afc since i wont be tuning with it anymore and take it to the dealer to get it checked out?

 

The dealer most likely won't want to deal with aftermarket parts, so I would disconnect it.