hello my fellow Alfisti
recently managed to get very cheap DNA switch from one Giulietta on eBay, by thinking would it be possible to install it on 159 (or Brera or Spider) and combine it with the pedal sprint booster (example here
first of all, have read somewhere (see attachment bellow) that, except touching practically everything else (ESP, ASR, overboost etc.) is also giving "engine faster response" which is equivalent to what this pedal sprint boosters do.
since driving 3.2JTS with tiptronic and paddle shifters which have only one option and that is to influence the gearbox shifting, as Squadrone Rosso explained me here
, was thinking could something more be done.
pedal boosters have very ugly interface (to my eye) with the driver and I would not like to install them as advised by suppliers
would be very nice if I could be able to connect the DNA switch with the booster. booster has only one taster and 2 LEDs (some other models than this one might be different). think that DNA switch is kind of taster basic principle, which has 3 LEDs for 3 modes
if you see on the attached photos, DNA connector has exactly 6 pins:
- one must be GROUND (will explain why)
- other 2 off must be for signaling the taster position (fwd or backward)
- remaining 3 must be for the LEDs
I would assume that LEDs via pins get the +X V while ground is allways there. or is it completely vice versa?
this should be fairly simple to connect with the control of the booster. since booster has only one button (simplest models) we could combine fwd and rwd tasting position (moving fwd and rwd would be just dummy, booster will follow its own sequence. 2 button models could make differentiating possible. booster's LEDs' signals could be transferred back to DNA switch
one could be going even further and think of connecting this with the SPORT button on the automatic gearbox (ok, I know, this mode is only valid when NOT in manual mode)
question for more advances electronic wizzards here: is it possible to change the settings of the 159's ESP or ASR? if so, that could be next step. if not, maybe Giulietta's or MiTo's one could be used, of course with some kind of re-mapping. Presume that ESP and/or ASR are similar ECUs which are just controlled by certain mapping settings?
back to DNA switch: regarding the positioning of DNA switch, there might be a problem. it is quite big (approx 50 mm wide, 70 mm long) and deep (60 mm bellow facia). this leaves practically only few places for potential installation:
- small compartment between the gearbox shifter and arm-rest box, where the lighter plug is hidden (am not sure how much space is between the bottom of that compartment and the tunnel bellow, if necessary the bottom could be raised up; this all hides nicely DNA from TÜV/MOT)
- small flatland and mini compartment in the armrest of the door, just behind the window controls (guess that lot of accidental operations of the DNA could be expected and wiring to the door might be difficult)
- small trim door that covers OBD II connector and fuse-box (hidden enough, unfortunately exposed to the knees)
for me, solution 1 seams as the best spot
I would be needing some help on this from one of the Alfisti who knows the electronics better than I do.
in return promise full manual with photos what to do