Hello! After having my car Dyno tuned with the SCT X4 Tuner, I have noticed a slight fluttering sound coming from the front of my car when in lower RPMS / higher gears. This sound goes away from either being masked by the sound of my engine or just going away completely; when I accelerate quickly up to 3000 RPMS. However, more force is needed on the gas pedal than what should be in my opinion. Without the tune, the sound is nonexistent. This sounds very dangerous, almost as if something is colliding with something / metal on metal.
MODS : BBK CAI, BBK TB + PLENUM, Magna-flow Exhaust
UNRELATED? : Cars battery seems to be wonky. Will turn over fine one time but will take a few seconds another. O/D light has come on and has blinked twice in the last week, but I could have just accidentally turned it off. This light does not stay on when I turn the car off and on.
* NOTE * I do not believe this to be pre-ignition as I’m using a 93 octane tune with 93 octane gas. It could potentially be, but I’m leaning to it being the torque converter?
*LAST* results from Dyno output were 242 RWHP + 284 torque ; 322 fwhp. Stock is 260 fwhp, so it doesn’t seem like there’s any power
MODS : BBK CAI, BBK TB + PLENUM, Magna-flow Exhaust
UNRELATED? : Cars battery seems to be wonky. Will turn over fine one time but will take a few seconds another. O/D light has come on and has blinked twice in the last week, but I could have just accidentally turned it off. This light does not stay on when I turn the car off and on.
* NOTE * I do not believe this to be pre-ignition as I’m using a 93 octane tune with 93 octane gas. It could potentially be, but I’m leaning to it being the torque converter?
*LAST* results from Dyno output were 242 RWHP + 284 torque ; 322 fwhp. Stock is 260 fwhp, so it doesn’t seem like there’s any power