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ford EEC IV stuff

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Old 02-01-2007, 04:33 PM
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Default ford EEC IV stuff

okay, there is chip kits that plug into the diagnostic ports of the EEC IV (1987-1992 i think) fords EFI system, does anyone happen to know if it's possible to tune/do a safc hack of sorts by this port? all i want to do is run like, a 16:1 afr, tough time destroying 140hp amongst 6 cast iron cyls..
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Old 02-01-2007, 05:46 PM
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Default Re: ford EEC IV stuff

Moates.net has a J3 adapter for EEC-IV, it basically gives you a socket you can land a chip in. Whether or not your ECU is understood enough to do a basic data table hack like you're wanting to do is up in the air.

FWIW, if you have a good O2 sensor and the tune up components are in good shape, you aren't going to pick up a whole lot of mpg leaning to 16:1 - I only did that for my car because tunes are free and O2 sensors cost money. You need a certain amount of fuel to support X amount of power required to cruise along, and 16:1 just means you have your throttle is open more so you get that amount of fuel.

If you want to get into EFI tuning, sounds like a great start... work your way into a 5.0 with an A9L and a big turbo.
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Old 02-01-2007, 08:00 PM
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Default Re: ford EEC IV stuff

Originally Posted by Joseph Davis
Moates.net has a J3 adapter for EEC-IV, it basically gives you a socket you can land a chip in. Whether or not your ECU is understood enough to do a basic data table hack like you're wanting to do is up in the air.

FWIW, if you have a good O2 sensor and the tune up components are in good shape, you aren't going to pick up a whole lot of mpg leaning to 16:1 - I only did that for my car because tunes are free and O2 sensors cost money. You need a certain amount of fuel to support X amount of power required to cruise along, and 16:1 just means you have your throttle is open more so you get that amount of fuel.

If you want to get into EFI tuning, sounds like a great start... work your way into a 5.0 with an A9L and a big turbo.
well JD, getting any tuning on this motor will strictly be more for whats coming down the road, hint, straight 6 boost. im recently down to like ------ 9mpg for no reason.. always had a knock/miss/ping/something at idle, and smells rich. don't know if it's ecu or injectors, only difference between this and my old 4.9 was 4x4, and i really aren't aware if that has any bearing on the ecu. it never really got over 12.5-13mpg when i first got it.. where my old 2wd ford cranked out 18-19 regardless of city or highway mileage. quite nice, 4900cc's and 19mpg is kinda tough to get. plus prev owner disabled the smog pump.. dont know if it had any bearing on the mileage like it did on my toyota, but egr to non-working egr left me with going from 21 city/25 highway to around 14-17 city and 18-21 highway babying it like ----.

same injectors.. lame *** ford #12, wanting to drop in some 5.0 or 4.6 mod #19's for the hell of it..
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Old 02-01-2007, 08:41 PM
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Default Re: ford EEC IV stuff

http://www.moates.net/product_info.p...roducts_id=100

Originally Posted by moates
This device goes in between the Ostrich and the EEC J3 port. With it, you can use the Ostrich to perform realtime emulation and tuning on Ford vehicles. Works for both EEC-IV and EEC-V. Comes with ribbon cable to go in between the FORDEMU and the Ostrich
is this what you meant? im a noob when it comes to ecu ----... not sure what all i need.
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Old 02-01-2007, 08:53 PM
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Default Re: ford EEC IV stuff

F150 with 300-6?

Rich/stumble idle can be a number of things. Check your grounds, those flat braided steel strips that come from the OEM die after a decade, and cause that. Jumper cable block to chassis and block to battery ground, see if that doesn't make a noticeable change - I learned that trick on an 87 F150 Bronco w/ 302, you know.
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Old 02-01-2007, 09:23 PM
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Default Re: ford EEC IV stuff

Originally Posted by Joseph Davis
F150 with 300-6?

Rich/stumble idle can be a number of things. Check your grounds, those flat braided steel strips that come from the OEM die after a decade, and cause that. Jumper cable block to chassis and block to battery ground, see if that doesn't make a noticeable change - I learned that trick on an 87 F150 Bronco w/ 302, you know.
ford has a fetish for grounding every part to almost every part + frame for some reason, what am i gonna do if it isnt ground?
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Old 02-01-2007, 09:43 PM
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Default Re: ford EEC IV stuff

Uh, ------- fix it?

Dude, what causes you to flood at idle? FPR stuck so the FP is elevated? Vaccum leak to the MAP so that the ECU thinks there is more load on the engine and so it shoots in more fuel althouh it isn't needed? Etcetera etcetera?
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Old 02-02-2007, 06:40 AM
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Default Re: ford EEC IV stuff

Originally Posted by Joseph Davis
Uh, ------- fix it?

Dude, what causes you to flood at idle? FPR stuck so the FP is elevated? Vaccum leak to the MAP so that the ECU thinks there is more load on the engine and so it shoots in more fuel althouh it isn't needed? Etcetera etcetera?
havent checked the fpr yet, and im not aware of ford having a map sensor, maf, or any of that. o2 tps and, uh, i think thats it. ill look into this weekend if i feel like it
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Old 02-02-2007, 10:39 AM
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Default Re: ford EEC IV stuff

All OEM vehicles have MAP or MAF. Read a basic EFI primer before you do anything or else youll be confused and frustrated.
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