[Diy_efi] My predicament

[Steve Ravet]

Do you have a schematic?  Hopefully your EE friends can troubleshoot it. =
 Did you mean that one injector wasn't firing (you wrote cylinder)?  You =
need to follow the signal back to the source (MCU pin?) to see where =
it's lost.  Hopefully just a driver is bad, or a software configuration =
problem.  Remember Bruce's suggestion, if your hookup is killing output =
transistors then you may be able to take them out, or the "logic" level =
drive to them, and build your own output stage.

If you do decide to give up, don't throw it in the trash, throw it in a =
box with my name and address on it.

--steve


> -----Original Message-----
> From: diy_efi-bounces at diy-efi.org=20
> [mailto:diy_efi-bounces at diy-efi.org] On Behalf Of joeld
> Sent: Wednesday, March 03, 2004 7:14 PM
> To: diy_efi at diy-efi.org
> Subject: [Diy_efi] My predicament
>=20
> Ok, so i don't know how many of you remember, but I came on=20
> here talking about how to sequentially inject a 2-stroke a=20
> while ago. Anyhow, we got it all wired up and one cylinder=20
> wasn't firing. As it turns out only one injector output from=20
> our controller works. There is a problem internaly that is=20
> causing this.=20
> We phoned the guy at DTA (the ECU is a DTA) and he said he=20
> never wired it up that way to begin with and hung up on us.=20
> Not impressed to say the least. For a $2300 controller you=20
> think he would have set it up properly or waranteed it or=20
> whatever, not hang up at any rate.
>=20
> So, I do have a few electical engineering friends that I=20
> could let tinker with this thing. Either internaly or=20
> externaly. Any ideas? Could we take the one signal and=20
> produce another that is 180 apart from it to drive the other=20
> injector? Can we open the thing up and possibly fix it? Do we=20
> throw it in the garbage and get a real controller (Motec i guess)?
>=20
> Joel Day
> 4th Yr. B.Sc. Min Eng
> C.S.C 2004 Project Coordinator
> Home: 780-434-9294 Cell: 780-722-5376
> C.S.C Team Website: www.ualberta.ca/~uacsc
>=20
> _______________________________________________
> diy_efi mailing list
> diy_efi at diy-efi.org
> http://lists.diy-efi.org/mailman/listinfo/diy_efi
>=20
>=20
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