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RE: Re: RE: U7164 9r11 Update Shifting hard, poor throttle r
Posted: Thu Oct 01, 2009 9:15 am
by SCGt94
arts, start by clearing all pcm and tcm codes. The trans may need to relearn its shifting procedure as its quite a change from the stock tune to the tune i sent you, drive it hard and let it try and relearn.The shuttering may be tune related, however i haven't seen that issue come up at all for these trucks. The poor throttle response is hard to dtich on these trucks as the dpf builds up quite a bit of back pressure on the turbine which slows spool times down by quite a bit, i have fuel ramped in like most diesels of yester year but you need to be careful as this will obviously produce more soot aka more regen, so i couldn't go too crazy with it.
Re: RE: Re: RE: U7164 9r11 Update Shifting hard, poor thrott
Posted: Thu Oct 01, 2009 5:27 pm
by arts4by4
SCGt94 wrote:arts, start by clearing all pcm and tcm codes. The trans may need to relearn its shifting procedure as its quite a change from the stock tune to the tune i sent you, drive it hard and let it try and relearn.The shuttering may be tune related, however i haven't seen that issue come up at all for these trucks. The poor throttle response is hard to dtich on these trucks as the dpf builds up quite a bit of back pressure on the turbine which slows spool times down by quite a bit, i have fuel ramped in like most diesels of yester year but you need to be careful as this will obviously produce more soot aka more regen, so i couldn't go too crazy with it.
Will do! Thanks Again I'll let you know!