Quote:
Originally Posted by redS2k06
Whats a VAFC  |
VAFC stands for
VTEC Air Flow Converter
It's a little device that splices into some of the ECU wires to allow a small degree of rudimentary 'tuning' of the air-to-fuel ratio.
They're not very good or worth the money IMO, and on some newer OBDII cars the ECU eventually figures out that it's being tricked and adjusts accordingly to bring engine operation back to stock.
*EDIT*
Oh yeah and those new Si Civics are quite slow. I drove a friends last week and could hardly even notice that it had VTEC.