Doesn’t the SFI come with the change from EECIV to EECV? I was quite sure that was the main change and the additional sensor in the former place of the distributor provided the cam sync trigger to the new ECU?
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10% EFFICIENCY GAIN WITH SFI MEGA$QUIRT?
- Thread starter gaz
- Start date
1995 and up Rangers had the new EEC-V 104 wire computer(PCM), and yes all engines from then thru 2011 were SFI
Ford could do SFI with the EEC-IV 60 wire PCMs, and they did in several V8 models, thats why the A9L and A9P PCMs were/are so popular, they are SFI, but you need to use the correct distributor that has the #1 vane indicator and have it setup correctly
For the pre-1995 4.0ls just the ones with Calif. Emissions got the SFI, and also had cam sensor and EGR
Just FYI, all Ford's start in Batch Fire, even in 2022 as far as I know, SFI takes over a few seconds later
And the PCM will switch to Batch Fire if there is a misfire detected, so a "misfire" on cylinder 3, for example, is usually not the injector since computer has already eliminated that possibility
Spark or compression(burnt valve) are way more likely
Ford could do SFI with the EEC-IV 60 wire PCMs, and they did in several V8 models, thats why the A9L and A9P PCMs were/are so popular, they are SFI, but you need to use the correct distributor that has the #1 vane indicator and have it setup correctly
For the pre-1995 4.0ls just the ones with Calif. Emissions got the SFI, and also had cam sensor and EGR
Just FYI, all Ford's start in Batch Fire, even in 2022 as far as I know, SFI takes over a few seconds later
And the PCM will switch to Batch Fire if there is a misfire detected, so a "misfire" on cylinder 3, for example, is usually not the injector since computer has already eliminated that possibility
Spark or compression(burnt valve) are way more likely
- Joined
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- Ranger 5" (1½" Hiryder/3" body), BII 4" Procomp
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- Ranger 5sp, BII A4LD
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That weight seems high, I thought the 1st gen Explorer 4 door 4x4 was 4,000lbs curb weight
5,280lbs might be GVWR, max weight allowed for vehicle, passengers and gear, so 1,280lbs over curb weight
5,280lbs might be GVWR, max weight allowed for vehicle, passengers and gear, so 1,280lbs over curb weight
Last edited:
- Joined
- Sep 21, 2007
- Messages
- 1,755
- Points
- 3,101
- City
- Wa, Bremerton 98310
- State - Country
- N/A
- Vehicle Year
- 1987
- Total Lift
- Ranger 5" (1½" Hiryder/3" body), BII 4" Procomp
- Total Drop
- Ranger 5sp, BII A4LD
- Tire Size
- Ranger 32"/4:10LS, BII 33"/3:73LS
- My credo
- Deengineer until it is how Blue Oval should have sold it!!
I think that you are correct, I was expecting 4050 lbs. In my excitement today, RIGHT
Thank you ..)
Thank you ..)
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