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M635 and CA Smog cert

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philm635
Posts: 4
Joined: Wed Jun 02, 2010 5:20 am
Location: Pleasant Hill CA.

M635 and CA Smog cert

Post by philm635 » Fri Aug 10, 2018 12:19 am

Has anyone been able to pass the California Smog check with a stock federalized M635?
Just curious if it is possible before I throw a bunch of $ at it.
Thanks!
Phil
'85M635

User avatar
philm635
Posts: 4
Joined: Wed Jun 02, 2010 5:20 am
Location: Pleasant Hill CA.

Re: M635 and CA Smog cert

Post by philm635 » Sat Aug 18, 2018 1:13 am

I'm told to get an 079 ecu. I assume that would be one from a USA version M6??? Anyone have an extra or recommend a source?
Thx
Phil
'85M635

motroman
Posts: 12
Joined: Sun Oct 22, 2017 4:10 pm
Location: San Francisco

Re: M635 and CA Smog cert

Post by motroman » Sat Aug 18, 2018 1:59 pm

Does "Federalized" cats were installed with corresponding software update to the ECU?
1989 635csi

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