East Coast Supermiata S2 Clone

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Jun 14, 2018 | 06:08 AM

#61

Bronson M

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JDM alternator is working fine for me, although I'm using a megasquirt ECM.

Jun 14, 2018 | 08:20 AM

#62

milkmandan

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From: Alexandria, VA

Quote:

Originally Posted by mzmanny

I take it that the JDM alternator was not playing nice with the ECU? I'd be curious to see if a USDM alternator will fix your battery light issue. I have a JDM BP6D that i'm getting ready to drop in. Maybe there is something different about the JDM alternator

Swapping back to the USDM alternator fixed it, not sure if there's a wiring difference or this alternator was just bad. The JDM one was only charging at ~12.05v. I've been on the lookout for a JDM ECU as a stopgap before I invest in a MS, but they seem pretty thin on the ground.