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Bockscar
Joined: 16 Nov 2010
Posts: 392
Location: Sandy, Oregon
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 Posted: Fri Mar 16, 2012 1:29 pm Post subject: Injectors clicking? |
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Hey guys - general (EFI related) electrics question: When I plug in the wiring loom into the megasquirt, the injectors 'click' and become very warm. Is this normal? It doesn't seem like a good thing..
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Brian
'79 924 - Restoration In Progress
'81 924 Turbo w/EFI - Scrapped |
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Min
Joined: 04 Nov 2002
Posts: 2368
Location: Vernon, British Columbia, Canada
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| Posted: Sun Mar 18, 2012 9:46 am Post subject: |
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Definitely not a good thing, sounds like they are opening and staying open. Something is screwed up.
Min
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Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting. |
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Bockscar
Joined: 16 Nov 2010
Posts: 392
Location: Sandy, Oregon
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Min
Joined: 04 Nov 2002
Posts: 2368
Location: Vernon, British Columbia, Canada
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| Posted: Mon Mar 19, 2012 8:18 am Post subject: |
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Sure, but your injectors shouldn't be warming up. Warming up implies that they are staying open.
Min
_________________
Custom means it didn't come from a box.
1980 n/a with EDIS and Megasquirt II Injection. 7 different colors and counting. |
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fiat22turbo
Joined: 18 Jan 2006
Posts: 4040
Location: Portland, OR
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| Posted: Tue Mar 20, 2012 2:19 am Post subject: |
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Yes, they should only open briefly for the priming pulse and not stay open for more than a few milliseconds (depending on the software settings)
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Stefan
1979 924 Carrera GTS (clone-ish)
1988 944 Turbo S (Silver Rose) |
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Bockscar
Joined: 16 Nov 2010
Posts: 392
Location: Sandy, Oregon
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| Posted: Tue Mar 20, 2012 3:40 am Post subject: |
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I may have been mistaken when I thought they got warm. This is an observation of a (idiot) helper that I was working with at the time. After re analyzing the wiring a dozen times, I've determined that there is no possible way for the injectors to activate and stay open unless there is a problem with the internals of the ECU brain (which I ordered pre assembled from DIY Autotune). While this is possible, it is highly unlikely.
I have everything wired up and confirmed functioning properly, save the RPM single (which appears to be very noisy) and the injectors (whom receive voltage but have not been tested for ground yet).
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Brian
'79 924 - Restoration In Progress
'81 924 Turbo w/EFI - Scrapped |
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