I'm curruntly using a stock FD ECU. Did CO check and found out my FD is running on very rich side on idle. Did smell some feul during idle but no black smoke thou.... I do have a exhaust temp and on...
yesterday i just install my ground cable....
first is that my car is old..
so originally.. if open lights.. the rpm will drop a bit..
but then.. after i install ground cable, also same.. :(
dono...