Any difference between 90 EX PM6 and 90 SI PM6?
Any difference between 90 EX PM6 and 90 SI PM6?
I'm running a 1990 Civic EX PM6 ECU in my '90 Civic SI, and I think it is causing a problem with the ELD circuit. To be more specific, I think it's causing the ELD to not send a signal when load is detected, making the alternator not kick out more power when it is needed.
For more details, here's my thread on it...
https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/still-having-some-electrical-problems-90-civic-si-2881394/
So...are there any differences between the EX PM6 and the SI PM6? If so, what are they?
For more details, here's my thread on it...
https://honda-tech.com/forums/honda-crx-ef-civic-1988-1991-3/still-having-some-electrical-problems-90-civic-si-2881394/
So...are there any differences between the EX PM6 and the SI PM6? If so, what are they?
Joined: Apr 2007
Posts: 11,314
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From: Big Sky Country, United States of America
Re: Any difference between 90 EX PM6 and 90 SI PM6?
They should be the same ECU, the only difference being if by chance one is a Cali emissions ECU while the other could be federal emissions...
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Wes90civic
Honda CRX / EF Civic (1988 - 1991)
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Dec 30, 2003 09:43 PM
