Horrid throttle heitation please help
 

hi all,

Im experiancing massive throttle hesitation when i pull off from idle or release the throttle fully and put my foot down at lower rpms.

I had no problems at all before i put my 440s in, since then the main diffrence is the throttle responce, and stluttering on over run.

From watching the gauges on tuner studio when i blip the throttle from idle (where its worst) the afr jumps down to 10.1 then when it stops hesitation for a second it jumps back to 14.7.

I cant seem to get the throttle responce to be smooth and responsive.

Running begi turbo, with intercooler, 440 injectors, ms2, using tunerstudio.

If you need any more infor please ask.

Thanks

bit more info from accel enrichment wizard.

MAP based AE

Mapdot threshold (KPA/s) 50

Accel time (S) 0.2

Accel taper time 0.1

end pulsewidth (ms) 2.0

when you put the new injectors in did you alter req fuel?

yeah i changed the injector flow from the standard 212 to 440 and the required fuel changed automatically to 6.1

is this right?

Did you scale down the pulse widths in Acceleration Wizard?