North American Turbocoupe Organization



Jeff K EEC-IV
Dan E Offline
Posting Freak
#1
Jeff (or anybody else that's interested...):

Having laid flat on my back for 1 1/2 days because of back pain !!! I've had nothing else to do but think of stupid stuff...

Does anybody have the pin-out of the EEC-IV LA3 ? If so, wouldn't it be possible to build a real-time monitor of all sensors from the EEC ? I mean, if you knew what all of the pin-outs were, couldn't you just tap into those and monitor TPS voltage, Injector voltage, MAF, VAM, ECT...etc...with either analog or digital guages real-time ???

You could start out with a simple bread-board and see if that worked...?

Is this a dumb question or not ?

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Dan Eaves
88TC 5spd, Crower 5.5" Sportsman Rods, Short Wiseco Pistons bored .030" Over, Ported Head with Polished Combustion Chambers, Gutted & Polished Upper, Ported & Polished Lower, Polished T/B, Ported E6, SVO T3 .63AR Turbo, 3" DP w/No Cat, 2 1/2" DynoMax single cat back w/DynoMax Super Turbo Muffler, RR Cam, K&N in Fenderwell, Gillis Boost Valve, Centerforce I Clutch, Removed A/C, Polished Wheels, Polished Valve Cover, Polished Crank and W/P Pulleys, Walbro 255LPH HP Pump, Kirban Adj FPR, and the DAMN Heater Core is new too !

NATO MEMBER (Vice Chairman...if it's a vice...I deal with it)
Dan Eaves
88TC 5spd Vermillion Red, Polished...everything...
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Jeff K Offline
Administrator
#2
Dan... Ford thought that this kind of info would be useful also, and designed their breakout box to do just that. Every dealer has s faw around. It is basically a box with contact pins numbered 1 to 60, and a male and a female 60 pin EEC connector coming out of it. You plug the BOB into the EEC and the harness, and you can monitor every single input or output of the EEC. They cost BIG bucks to buy one, but you could build one by getting a male 60 pin off a junk EEC and a female 60 pin off a junk harness, and wiring them together pin for pin with a tap coming out for each of the 60 pins. I have toyed around with doing this from time to time, but never had the ambition to do so. Someone over at TF has one (Dave R, I think it is), but I dont know if he made it or if it is the Ford one, nor do I know where he got it for what it cost him.

Another approach is the Auto X-ray or AutoTap scanners ($200+) that let you monitor sensor inputs and activator outputs directly. For example, they will read stuff like ECT output in deg. F, throttle position in % WOT, spark advance in deg, etc.

As for the pinouts of the LA3, and other Ford computers, all that info is well known. The EVTM shows the EEC pinouts, as well as diagrams in the Engine / Emission Diagnosis Manual. I think GT350R has some of these diagrams posted on his site.

Sorry to hear about your back. I too am plagued with occasional bad back pain that really slows me down, but mine sure doesnt sound nearly as bad as yours. Getting old is a bitch!

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Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 20 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 00 Windstar (wifes vehicle)
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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GT350R Offline
Senior Member
#3
Hey Dan, I have it up for sure. Also , to go along with that idea here are some other projects to check out.
http://www.gt350mustang.com/schematics.htm

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GT350R
#1978 20th 2.3 Turbo T-top
#3608 20th 2.3 Turbo T-top
WAY too many TC's and other mustangs!

My Garage
GT350R
(sold Sad ) 87 5speed, Motorsport head, [email protected]+2, [email protected], gutted or ported everything & all the typical junk.
84 Gt350 2.3T T-top
84 Turbo GT 418rwhp

My Garage
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DrPhang Offline
Senior Member
#4
Get well soon Dan!
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JT Offline
Posting Freak
#5
Quote:Originally posted by Jeff K:

Another approach is the Auto X-ray or AutoTap scanners ($200+) that let you monitor sensor inputs and activator outputs directly. For example, they will read stuff like ECT output in deg. F, throttle position in % WOT, spark advance in deg, etc.

i don't think that's possible Jeff. The older EEC-IVs didn't have the capability to provide that info.

If you check the AutoTap site, you'll see that's for OBD-II vehicles. OBD-II was required in 1996. But a few Fords got OBD-II before then (like the 4.6L in the '94 T-Bird).

One of OBD-IIs many features is the ability to provide live-data, and continue to monitor itself and sensors as well as the condition of the cats.

EEC-Vs with OBD-II is different from our EEC-IVs. i have various "scan tools" and none of them can read live-data from the EEC-IVs in our Turbo Coupes due to the EEC itself.

You can build a box like what was mentioned above, but you'll need to have a good idea of what voltage = what reading.

i know a lot of 1989 Ford vehicles with the EEC-IV had the ability to provide "live-data" through scan tools. First generation of OBD.

Our Turbo Coupe EECs don't really have that ability.

JT



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JT
[email protected]
www.geocities.com/turbocpe/
1987 T-Bird Turbo Coupe T-5
1994 T-Bird LX 4.6L
1988 T-Bird Turbo Coupe A4LD
1988 T-Bird 3.8L
1979 T-Bird Heritage 351M
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Jeff K Offline
Administrator
#6
OK, JT, I stand corrected!. I thought that all OBDI cars (cars that had a CEL) had the ability to read live data from the computer, not just a few of them.

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Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 20 psi, forced air intercooler, water injection, bypass valve, Ranger roller cam, subframes, etc., etc.. // 86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP nitrous, ignition, gears, suspension, etc., etc.... // 91 Escort: Bone stock winter car // 00 Windstar (wifes vehicle)
Jeff Korn

88 Turbo Coupe: Intake and exhaust mods, T3 turbo at 24 psi, forced air IC, water injection, BPV, Ranger cam, subframes, etc., etc.
86 Tbird 5.0 (original owner): intake, exhaust, valvetrain mods, 100 HP N2O, ignition, gears, suspension, etc., etc.
05 Taurus SEL Duratec daily driver
04 Taurus Duratec (wifes car)
02 Pontiac Grand Prix GT
95 Taurus GL Vulcan winter beater
67 Honda 450 Super Sport - completely customized
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JT Offline
Posting Freak
#7
Quote:Originally posted by Jeff K:
OK, JT, I stand corrected!. I thought that all OBDI cars (cars that had a CEL) had the ability to read live data from the computer, not just a few of them.


EDIT:
i need to correct myself too. Some of our TCs do have OBD-I. But no, they do not support live date mode. i'm told that was around 1991.

JT

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JT
[email protected] www.geocities.com/turbocpe/
1987 T-Bird Turbo Coupe T-5
1994 T-Bird LX 4.6L
1988 T-Bird Turbo Coupe A4LD
1988 T-Bird 3.8L
1979 T-Bird Heritage 351M

[This message has been edited by JT (edited 11-29-2001).]
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