general a/f ratio question

[EHardy1971]

Originally Posted by darkhorse

does the sticker on ecm say "sefi" or do i need a decoder ring ? the more research i do the more i realize i will most likely have to live with the non sefi setup due to the fact that there is no ecm that will take care of 4x4/e4od/sefi/maf/ obd1 no vehicle existed with that setup from ford , the lightning is maf/e4od/sefi config,but the 4x4 wont go into low range according to most info avail...

a/f ratio is prob good in combustion chamber ..just seems like a waste of fuel ...

Yes, SEFI is what your looking for, for Sequential Electronic Fuel Injection. Yeah, you may have to live with what you have, OR, go with a custom tune. Considering how many of these trucks that were built, I've never understood why there wasn't much of an aftermarket for them. About all you can find for them that is F-150/Bronco specific, is the Edelbrock intake, BBK throttle body, headers, and K&N CAI. And the Edelbrock intakes are expensive.