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Old 06-28-2006, 09:45 PM   #39
rlith
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Re: 95 Jimmy 4.3 Vortec starting problems - weird

[quote=Megs1082]according to the chilton I do have a 93 CMFI - we just verified tonight, and according to the chilton there is no CPI??????

anyway

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look at the how-to that's posted...

Your pics don't work

Another reason I don't like chilton manuals...

CPI=Central Port Injection...92-95 4.3 motors

CSFI=Central Sequential Fuel Injection 96-2000

CMFI=Central Multiport Fuel Injection-2000-2004 Standard, 96-1999 if you had injection problems (clogged, stuck open) and had the system upgraded. This was actually a recall issue for california I believe.


This is a CPI motor and CPI unit.. See thread here for more pictures...http://www.automotiveforums.com/vbul...ight=regulator



CSFI



CMFI



(Note, the CMFI above is the 8 cylinder version, no diff in the 6 really except less 2 nozzles) CMFI will work in CSFI motors w/ the conversion kit
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