When should the reported TP be 0%? Mine *never* is... The lowest I've ever seen it was today at 13%. Normally, foot off the pedal is 16-18%. This seems weird to me...
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When should the reported TP be 0%? Mine *never* is... The lowest I've ever seen it was today at 13%. Normally, foot off the pedal is 16-18%. This seems weird to me...
You have electronic throttle and probably will never see 0 except when the truck is off.
I do have DBW throttle electronics. Seems like such a waste of good bandwidth ;)
Since I have the commercial version, can't I just tweak the throttle voltages?
It's normal, ignore it and move on :-)
Cheers,
Ross
Hehe what fun is that :PQuote:
Originally Posted by GMPX
:thankyou2:
Back from the dead....Does RAFIG tuning still apply to DBW? If so anything worth mentioning? I logged my STIS and LTIT and made the changes based on the average correction at each temp break point. Is this all useless with DBW?
It still applies. The difference is that the idle air is controlled by the throttle blade rather than an IAC valve. For best results, B4349 must also be set according to the throttle size if the throttle has been upgraded to a larger size.
On my 5.3 idle throttle was something like 7%. IIRC it is around 12% on the 427. These numbers are with 90mm TBs.
Is simply reducing the value of B4349 by the TB's surface area diff's in percentage correct ? (ie., changing from a single blade 80mm to twin 58mm)
Let's assume the factory tune I'm using was for a car with an 80mm TB.
Surface Area of single blade 80mm = (3.14*40*40) = 5024
Surface Area of twin blade 58mm = (3.14*29*29)*2 = 5281
Percentage Diff. is basically a 5% increase in surface area.
So would you decrease B4349 by 5% to compensate for the 58mm TB ?