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aggarcia
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Gotech MFI - No Injector Pulse

Post by aggarcia »

Installing a Gotech MFI on a L-Jet 88 Spider. Running a modified dist with hall sender installed. I have RPM signal and lots of spark. No injector signal!! I have power to both sides of injector connectors, but ECU is not switching ground. Gotech trouble shooting on website is useless. Any ideas?
ANDREWG

1982 GTV6 ITS #63
1988 Milano Verde - Project car
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Michael
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Post by Michael »

Have you tried to reach GoTech on MSN Messenger?

info@gotech.co.za

I see them logged into IM quite frequently - might be worth trying?
They also have the forum on their site.
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Post by Greg Gordon »

Can't you call JJ?
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aggarcia
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Post by aggarcia »

I called JJ of Friday with no response. I was hoping maybe someone else had a similar problem in the past. I will call South Africa directly this afternoon if I do not hear from JJ.
ANDREWG

1982 GTV6 ITS #63
1988 Milano Verde - Project car
1988 Milano Verde IMSA IS - now SCCA ITE
1991 164S

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Re: Gotech MFI - No Injector Pulse

Post by Mats »

aggarcia wrote: I have power to both sides of injector connectors, but ECU is not switching ground.
What do you mean by that? Do you have +12V on both pins? Are you sure the injectors are wired correctly?
Mats Strandberg
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Post by Barry »

Mats,You will always have +12v on both pins when its switched on..The transistor is switched to ground,remember??
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.
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aggarcia
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Post by aggarcia »

Yes there is 12v to both sides of each injector connector. As Barry mentions, this is the correct state until the ECU grounds the injectors to fire them. The basic harness was purchased from JJ, so the wiring matchs what Gotech lists in their website. I have RPM signal and spark.
ANDREWG

1982 GTV6 ITS #63
1988 Milano Verde - Project car
1988 Milano Verde IMSA IS - now SCCA ITE
1991 164S

www.garciaalfaracing.com
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Post by Barry »

:!:
Last edited by Barry on Mon Apr 16, 2007 10:12 am, edited 2 times in total.
French cars are shit and shit expensive to service and bloody awful and unreliable and expensive and friends don't let friends drive french cars and you wait years for parts.
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Post by Mats »

Barry wrote:Mats,You will always have +12v on both pins when its switched on..The transistor is switched to ground,remember??
Guess I figured the ground side was just open or grounded, not +12v or grounded.
Mats Strandberg
-Scuderia Rosso- Now burned to the ground...
-onemanracing.com-
-Strandberg.photography-

GTV 2000 -77 - Died in the fire.
155 V6 Sport -96 - Sold!
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Post by Greg Gordon »

I think JJ will probably swap you ecus or wiring harnesses. I doubt Gotech would want you taking those things apart and looking for the problem.
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