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Help! Laggy after tune
Posted: February 21st, 2026, 9:17 pm
by El-Plomo
My first time here. I just tune my 2015 Mazda 3 2.0L. Before the tune, I have used my throttle controller, and the car has been responding great. After the tune, the car feels different, and draggy when accelerating. Is it because I have the throttle controller? Before the tune, I put it in normal. Help please.
Re: Help! Laggy after tune
Posted: February 23rd, 2026, 12:50 am
by mituc
Since you have access to the throttle tables you can tune the throttle response from those and not use any external device. When you removed that throttle booster or however they call them, the APP/throttle mappings came back to normal.
Re: Help! Laggy after tune
Posted: February 23rd, 2026, 9:03 am
by El-Plomo
I didn't remove the external throttle controller, I just put it in "normal" (stock) before the tune. D
Would you recommend to remove it with the tune already added or just remove it and then re-flash the ECU?
Re: Help! Laggy after tune
Posted: February 23rd, 2026, 10:04 am
by mituc
El-Plomo wrote: ↑February 23rd, 2026, 9:03 am
I didn't remove the external throttle controller, I just put it in "normal" (stock) before the tune. D
Well, it's the same thing basically.
And yes, I would remove it... in case somehow the throttle calibrates when the tune is flashed and it will not want to get tricked any more...