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winker · 08-31-2011, 08:18 AM

I think I may have come up with a software solution for Peak and hold injectors. I did some very quick tests at lunch time, and grabbed some scope traces, which look very promising.

This fix relies on the two inductive voltage spikes, one at injector on and one at injector off (the trick is to work out which is which).

After work I'll up date this post with the scope traces and my code mod fom people to have a look at and perhaps try out.

I dont have a mpguino (any body want to send me one for testing!), so loaded the code into an arduino and assigned one of the pins to show the injector pulse status.

I then attached my scope to the incoming signal and the pulse status pin. The traces look very good.

Regards, AJT

08-31-2011, 08:18 AM	#1 (permalink)
winker EcoModding Lurker Join Date: Nov 2009 Location: UK Posts: 18 Thanks: 0 Thanked 2 Times in 2 Posts	Peak and Hold Software Solution I think I may have come up with a software solution for Peak and hold injectors. I did some very quick tests at lunch time, and grabbed some scope traces, which look very promising. This fix relies on the two inductive voltage spikes, one at injector on and one at injector off (the trick is to work out which is which). After work I'll up date this post with the scope traces and my code mod fom people to have a look at and perhaps try out. I dont have a mpguino (any body want to send me one for testing!), so loaded the code into an arduino and assigned one of the pins to show the injector pulse status. I then attached my scope to the incoming signal and the pulse status pin. The traces look very good. Regards, AJT Last edited by winker; 09-09-2011 at 12:54 PM..