got a question... All you guys running megasquirt... what did you do about the turn on lead for the alternator? should i leave it hooked up to the stock ECU? should i jump it to a switched ACC line?
I am hoping i can just jump it to a switched hot. this would make my life REAL easy. However, if i had to connect it to the stock ECU, it would be a huge pain, but it could be done. will both ways work? or does it HAVE to be hooked to the ECU? Thanks
M90'd Built LGO-15 PSI
http://webstarts.com/quadper4mance
I've always run with the stock system controlling it. I've never tried a switched hot but it should work.
"Never argue with an idiot. They'll drag you down to their level, then beat you with experience!" -Anonymous
well, i just tried it both ways. first, with 12 switched to the "field" wire, still gets no output. So, i hooked the field wire back to the stock ECU, still get no ouput. Finally also connected "lamp" wire back to stock ECU, then i get charge output. so, in this instance, both wires must be connected to stock ECU to work. bummer.
M90'd Built LGO-15 PSI
http://webstarts.com/quadper4mance
Hmm...do you think a alt. swap could be done...maybe to a one wire setup and have the MS turn on the alt? I'm not 100% on all this yet....would have to do some reading.
"Never argue with an idiot. They'll drag you down to their level, then beat you with experience!" -Anonymous
Nukkinfuttz wrote:well, i just tried it both ways. first, with 12 switched to the "field" wire, still gets no output. So, i hooked the field wire back to the stock ECU, still get no ouput. Finally also connected "lamp" wire back to stock ECU, then i get charge output. so, in this instance, both wires must be connected to stock ECU to work. bummer.
I just have the red wire connected to something 12V+ with the key on. The alternator can run by itself.
Jon Mick wrote:
i find it amusing that SHOoff has nothing better to do but follow me around & be an unhelpful dick in even cross-forum.
The early alt uses the flat 4 cond connector, we use a 150 ohm 5 watt resistor in term "b" to ign. this makes for a stand alone system. on the late denso alt, just connect ign to term "1". Questions ? give me a call 909 910 3867. Steve
