Hi Guys - First post - be kind! I'm just starting to build a loom for my LS1 (in a Lotus Excel. Been on the factory ECU for some years): I know the LS1 coils have built-in amplifiers - I just want to double-check the actual wiring. There are four connections:
+12v
Ground
Signal
Reference low
Should I connect the "ground" to chassis earth and "reference low" to the sensor ground on the S80?
Thanks very much
This will not be my last query !!
LS1 ignition coils
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- Posts: 3586
- Joined: Tue Aug 02, 2011 12:08 pm
- ECU Model: No ECU
- Location: Norn Iron
Re: LS1 ignition coils
Just ground both of them locally. But the "ground" must be grounded locally to a good solid earth point, ie head, block etc as that's the power ground that carries the current.
The other is just a feedback wire for the OEM ecu to help identify misfires but everyone says it must be grounded ( havent actually tried it ungrounded though )
The other is just a feedback wire for the OEM ecu to help identify misfires but everyone says it must be grounded ( havent actually tried it ungrounded though )
Re: LS1 ignition coils
Thanks very much - that makes it easier!