7 sek mark
Registered
ya pretty much as the title says when the motor is cool and a romp on it it stumbles pretty bad untill it hits about 4k rpm. once the motor warms up a little it runs fine but for say the first 10 or mins after i run it after it has sat for a while to cool all the way down it stumbles. i have changed the maf, ECU (had a extra laying here so i changed it just to see), plugs are new, MSD plug wires and coil packs are pretty new. only thing i could think is maybe the o2's might be bad they are about a year or 2 old could they be causing this problem?