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Topic: 83 5.0 CFI.. EEC-III or EEC-IV? (Read 5230 times) previous topic - next topic

83 5.0 CFI.. EEC-III or EEC-IV?

which would it have? i found a couple tech articles explicitly saying it's EEC-IV, but a guy on SBF Tech PM'd me, insisting it's EEC-III and he's willing to bet all of this auto knowledge on it.. aren't the square pre-82 birds the 1's with EEC-III's?
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #2 –
here's the easy way to put this to rest.. is the EEC-IV for TBI or MFI? 85 was the last year for CFI/TBI and 86 began the MFI/multi port.. i'm going to drop kick the people who wrote the pages i was reading if the IV is an MFI ecu
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #4 –
a quick ebay search shows some 84-85 EEC-IV's and some '85-94' EEC-IV's.. sooo, is it possible that the EEC-IV was used in the 83 5.0 bird, since it was a mid model year launch? the 5.0 and TC birds weren't released until feb of 83
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #5 –
83 5.0 CFI EEC III, 83 Turbo EEC IV,  83 3.8 Carb.
Early 84 5.0 CFI for California EEC III.
All other 84 -88 CFI, EFI and Turbo EEC IV

Except for Canada which had Carbs on 83-85  5.0 and 3.8

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #6 –
so, in other words.. with the EEC-III, the ignition would be run off a module(ICM) like so.. correct?


ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #7 –
Quote from: Shadow;368189
so, in other words.. with the EEC-III, the ignition would be run off a module(ICM) like so.. correct?



Yes. It uses a Duraspark III ignition module.
Also the distributor has no stator or hall effect emitter and no vacuum advance. So the only wires to the distributor are the plug wires and the coil wire. There is no timing adjustment.
A crankshaft position sensor sends a PIP pulse to the EEC. The EEC sends a spark out pulse to the ignition module.

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #8 –
no wonder these cars old had 140hp.. they were set up so retarded.. playing with this thing is NOT going to be fun.. lol
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #9 –
tell me about it, can't wait to rip it out and raplace it with a HO motor :P
83 Thunderbird Heritage - Right Hand Drive
95 Falcon GLi

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #10 –
i don't have that option with this car, since it's not mine and is staying 100% original to the detailed eye.. it's either i find a way to make it work or build a mega squirt ECU to be compatible with the OEM harness, but i reeeeeeaaaaaaallllllllllllllllly don't want to take that route
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #11 –
Quote from:

Except for Canada which had Carbs on 83-85  5.0 and 3.8[/QUOTE


  MY 84 is a Canadian and had CFI.
84 COUGAR/90 HO, 1.7RRs, performer RPM,700DP, equal length shorties, stainless EXH ,T-5,Hurst pro-billet, KC clutch, 8.8/ 4.10s, line-lok, bla ,bla, bla.
71 COMET/289,351w heads, 12.5 TRWs, 750DP, Liberty TL, 9"/6.00s, 11.9x @112 , bla,bla,bla.

Never shoot your mouth off, unless your brain is loaded! ....I may get older, but I'll never grow up!....If you're not laughing, you're not living!  :laughing:

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #12 –
so far, from the info i've gotten from sbf tech and some googling (and the tidbit of info here), it looks like the best bet is to upgrade to EEC-IV and disguise the harness as the EEC-III setup.. the AC bracket and compressor will hide the distributor module. the rest i can run under the hood to look exactly like the stock EEC-III harness and leave the duraspark III ICM in it's place, with a dumby harness
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #13 –
Quote from: Shadow;368292
so far, from the info i've gotten from sbf tech and some googling (and the tidbit of info here), it looks like the best bet is to upgrade to EEC-IV and disguise the harness as the EEC-III setup.. the AC bracket and compressor will hide the distributor module. the rest i can run under the hood to look exactly like the stock EEC-III harness and leave the duraspark III ICM in it's place, with a dumby harness

Sounds interesting, keep us posted.
tbirdregistry.com
26480
27373

83 5.0 CFI.. EEC-III or EEC-IV?

Reply #14 –
there will be a large thread with tons of pics of the car.. it's a full on resto i'm doing for a member here
ShadowMSC.com < < Still Under Construction

R.I.P. 'Zump' 8/29/86 - 11/11/11
3- 87 TC's / 1 really mean 83 Capri RS / 94 Sonoma SAS Project on 37x12.50 TSL Radials / 88 S10 that's LITERALLY cut to pieces / 84 F150 SAS, 351M, 39.5 TSL's / 85 Toyota regular cab, 22R 5spd, 3/4" drop, my little junkyard save/daily driver