hello guys,I have a customer with a opel corsa petrol\gpl that he wanted to make the map... how do you behave you with the gpl?? going to change the advance petrol, mod also the goal? or the control unit of the gpl has its own management of the advance? thanks a lot!
anyone guys?
Last edited by magi1984; 02-07-2013 at 08:57
Hello usually the lpg system does not have the offset in advance , really? fully use the electronic management of the series to work
then we would need a ecu-specific interfacing with the sensors of the series , it would be costly and complicated, and not universal
I have done some tests with the system in the brc to the tour , with a map of advance specification best results are obtained , the gpl bucia + slowly and in need of + oxygen so well on supercharged with + press turbo , true that on petrol, then you're not optimized... it would take a dual map .. are of little use if ? can install it on the ecu , and still to calibrate well the gpl , dynamometer and stecchio as a real mapping , the gpl is the equivalent of a 102 ron
and with petrol natural gas, what do I do??? just anticipate to work around those pesky gaps that complain about the customers???
those pesky empty complained by customers are often caused by an adjustment of methane is very "pull" to consumption (lean).
often just give a little more? easily the methane that everything resolves.
for? the plant engineer to methane , and to see that you save, is poor-usually with the pressure.
the fuel mixture too lean or too rich ? allowed by the ecu the engine where l autoadattativit? not ? active or ? very elastic (car up to about met? 90's)...with auto ir? modern is not possible, these adjustments why? you run into errors and malgestioni, sometimes even damage...? need to follow perfectly the trend of the correctors and the demand of the engine.Originally Written by sergiot
considered completely acceptable, except that I have seen that the metanisti make calibrations strict to speed? constant and often neglect the part accelerativa of operation, where the correspondence between petrol and cng ? a little bit different.
then you have to add, that the plants of the source gas suffer less from this problem.
pi? obvious ? in the systems after the sale, and perhaps economic, where the autoadattamenti of lambda are not managed cos? well.
otherwise, I wonder why? I have to intervene often on the cars to cng or lpg to lock the adjustments when they have already? damage done.
where you often intervenes ? just because you? it is a mistake to adjust the gas map, and it normally happens because? you can try only a few situations of load "real" and never all....and this does not take account of the correction in the exact way, leaving a too high time of intervention or a deviation of the signal that induces the continuous movements of the zero ideal conditioned from autoadattativit
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