EFI or SFI

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08-16-2007, 02:47 AM

BigRed03GT

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EFI or SFI

hey guys, wanted to kno whats the difference between EFI and SFI? and how do i figure out which one do i have on my 03 gt auto?

08-16-2007, 09:28 AM

BigRed03GT

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RE: EFI or SFI

*bump*

08-16-2007, 10:06 AM

oxfordgt

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RE: EFI or SFI

EFI is electronic fuel injected SFI is a rating

08-16-2007, 10:19 AM

Reed44

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RE: EFI or SFI

EFI-Electronic Fuel Injection
SFI-Sequential Fuel injection
SFI is the type of fuel injection for electronically fuel injected vehicles. Each injector sprays as the intake valve opens. This is found on all new cars where early 90's and 80's there was bank fire for efi. The injectors would fire front to back not "sequentially" like sfi. Bank fire is found on the older berettas, cavaliers and such. I hope that helps and if there is more someone please add to it.