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Location:
Pine Rivers QLD
Registered:
April 2005
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EFI.ECD relay
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Sat, 23 July 2005 06:34
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I am just wondering if anyone has any idea what this could be used for. The relay has EFI.ECD written on it. the car is a 1985 soarer. the EFI fuse in the bay is switched with this relay. and idea's what it could do? is my ECU not powered constantly???
Thanks
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Location:
Pine Rivers QLD
Registered:
April 2005
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Re: EFI.ECD relay
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Sat, 23 July 2005 23:39
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it is common to have an EFI relay? it isn't the main relay as that is separate. I thought the ECU obtained constant power from the EFI fuse but mine seems switched. and thoughts would be appreciated. Thanks
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Location:
Brisbane
Registered:
February 2003
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Re: EFI.ECD relay
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Sun, 24 July 2005 01:34
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i'll find a PDF of my wiring diagram suggests:
<http://members.optushome.com.au/mkhala/red_celica/ 1G-GTE_info/1g_gte_ecu_wiring.pdf> (430K PDF)
my 1ggte diagram suggest that:
20A EFI fuse gets perm batt power
7.5A IGN fuse gets switched power
see bottom of this page for some info but be aware that some of the data listed is out of date.
i'd suggest you ignore what the printing on the relay says and use multimeter and testing to determine what various relays/pin-outs/wires are actually doing when the key is an off, ign, sta ... etc.
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Location:
Pine Rivers QLD
Registered:
April 2005
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Re: EFI.ECD relay
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Sun, 24 July 2005 03:11
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yeah i did all that. i just wondered if it ran anything. since my main relay is switched on via the old loom i have wired the M-REL line to this and ran my own constant power lines. it seems to be happy with this as the car will start.
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Location:
Brisbane
Registered:
May 2002
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Re: EFI.ECD relay
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Sun, 24 July 2005 11:55
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I suspect that the old 1gge ecu received its switched battery power from this relay, such as 5m-e's ect do in MA61's.
It's the same functionality as the M-REL, but switched via the ignition barrel as opposed to switched via the ECU. (as far as I am aware  )
Cheers
Wilbo
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