Engine knock? or pinging....the ecu can automatically retard upto 9degrees when its pinging or whatnot.
pinoydon2003 said:are u sure that its safe to top out at 97 in 3rd?? it's stick right? my 5spd EX tranny redlines at 80mph.. i don't think you should be doing that in 3rd, DX don't come w/ tachs either rite? ur probably redlining the hell out of it