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no ign output from megasquirt
Posted: Fri Dec 18, 2009 6:02 pm
by ball o sketch
im working on a honda using a stock distributor with the vr pickups. v3.57 computer running version 2.89 i bought from DIYAutoTune. i have a msd6a box for the ignition, and a msd sc coil. i have recheecked all the wires like ten times and everything seems to be wired alright. if you use the msd test method the msd box is ok. i tryed the logic probe on pin 36 out of the ecu and i got a little flash positive when i started to crank the engine over then nothing, no grounding. if anyone has any ideas what might be wrong that would super, im stuck right now.
Re: no ign output from megasquirt
Posted: Sat Dec 19, 2009 7:09 am
by 8974Ollie
Check the Keyed 12v lead is hot in both the start and run position.
Re: no ign output from megasquirt
Posted: Sat Dec 19, 2009 12:43 pm
by ball o sketch
its getting power all the time, the ecu just isn't sending a signal.
Re: no ign output from megasquirt
Posted: Sun Dec 20, 2009 7:11 am
by grippo
During cranking are you getting an rpm on the PC gauge ? If you are getting rpm without any dips to 0 rpm, then it could be electrical; if you get no rpm or an rpm that frequently dips to 0 and then comes back up, then the ECU is either not seeing the tach input signal or just seeing it sporadically or seeing a lot of noise.
Re: no ign output from megasquirt
Posted: Sun Dec 20, 2009 8:49 am
by ball o sketch
the computer shows good tach with no drops to 0. it shows a steady 200 ish rpm. im thinking there is something wrong with the ms. but i hope im wrong
Re: no ign output from megasquirt
Posted: Mon Dec 21, 2009 6:55 am
by Matt Cramer
Take the lid off - what's in the Q16 slot?
Re: no ign output from megasquirt
Posted: Sun Dec 27, 2009 9:00 am
by ball o sketch
there is now a ign transister, and it works now. there wasn't before so im good to go now.