12V question? why bother with the ecu?
#1
12V question? why bother with the ecu?
why not go stand alone controllers? you can get fuel/boost/timing and AF/EGT/etc. gauges so what are you missing?
get a centrifical supercharger(Z-Engineering or similar) bolt it on and moniter AF till its stoich or lil rich for safety.
just a thought and trying to provoke ideas for my fellow Audi modders
get a centrifical supercharger(Z-Engineering or similar) bolt it on and moniter AF till its stoich or lil rich for safety.
just a thought and trying to provoke ideas for my fellow Audi modders
#4
Well, you might not be able to make the abs, central locking system and airbag modules work with...
an aftermarket ECU alone. You will need an additional emulator that can mimic the signals from the ancillary modules otherwise they'll throw error codes and might not work properly anymore. So as you can see unless you get rid off most of the convenience features you'll have to spend a lot of time and money figuring out or re-engineering the electrical system and communication protocols between the devices to make everything work in harmony.
But you might (just might) be able to make things work with a piggyback ECU that can modify the host ECU's EFI output but leaves everything else alone. See link.<ul><li><a href="http://www.theracersgroup.com/theprogram_unichip.html">UniChip</a></li></ul>
But you might (just might) be able to make things work with a piggyback ECU that can modify the host ECU's EFI output but leaves everything else alone. See link.<ul><li><a href="http://www.theracersgroup.com/theprogram_unichip.html">UniChip</a></li></ul>
#5
That's not really the problem.
A lot of the aftermarket ECUs actually work in conjunction with the OEM ECU. The aftermarket units take over the engine management function while the OEM ECU maintains all other functions.
The real issues are cost and finding a competent installer. The aftermarket ECUs can be very difficult to install properly, and are even more difficult to get running at optimum levels.
Scott
The real issues are cost and finding a competent installer. The aftermarket ECUs can be very difficult to install properly, and are even more difficult to get running at optimum levels.
Scott
#7
no no no, you missed my point I guess I didnt write it very well
The seperate controllers just fool the signal to the ecu making it think different paremeters are being done, for ex:
if I make the fuel controller go 30% rich at 3500rpms it will tell teh ecu that the car needs 30% rich (assuming you could make it that rich) etc, you can change the timing,fuel,boost etc all with "piggy back" contollers.
all the other ECU functions are untouched
well thats AFAIK that how the controllers work, that is how I am going to run my 1.8T after i get my turbo, IMO screw this tuner chip none-sense but thats a different story all together.
if I make the fuel controller go 30% rich at 3500rpms it will tell teh ecu that the car needs 30% rich (assuming you could make it that rich) etc, you can change the timing,fuel,boost etc all with "piggy back" contollers.
all the other ECU functions are untouched
well thats AFAIK that how the controllers work, that is how I am going to run my 1.8T after i get my turbo, IMO screw this tuner chip none-sense but thats a different story all together.
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#9
That's what UNIChip does but you have to go through a distributor to buy it...
and have it installed. Then they'll have to put your car on a dyno to adjust the mixture, timing and waste gate pulse width. There is more to it than what I just mentioned. It's not a simple hand waving process. It might take a few iterations to get it right.
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