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    #1

    CFI to EFI Swap

    Began the long delayed CFI to EFI upgrade tonight. I have just about all the parts i need other than some gaskets as far as i know. Got the old wiring out and started removing the CFI unit. Unfortunately, the heater/floodlights/sterio were to much for the garage circuit, and popped a breaker. Getting to the breaker box will be a several hour adventure that i didn't want work on right now, it is buried behind a ten foot deep wall of junk, piled all the way to the ceiling. The motivation will strike me again in a few hours and i'l get back to working on it. I'l be sure to get some pics as i go, and try to remember enough info for a write up.


    1984 Grand Marquis GS - CFI-SEFI conversion, Explorer 302, GT40 intakes, GT40P heads, 1.7 roller rockers, HO Cam, ASP Underdrive Pulley, 2.5" Dual exhaust, Flowmaster Delta 50 mufflers, 3.55 Trac-Lock, Rear disk's, Moog cargo coils, ES rear poly bushings, PI front and rear sway bars, 3G alt., Mark VIII fan, custom Auto-meter dash
    1990 Crown Victoria Country Squire - Explorer 302, HO cam, dual exhaust, 3.55 Trac-Lock, PI rear sway bar (SOLD)
    1982 LTD Wagon (R.I.P.) -|-1984 Grand Marquis LS(R.I.P.)
    Tags: None
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    #2
    Not going HO just yet. Will be putting a new motor in this year though, and that will be HO. Wanted to get the EFI part done and working now so i wouldn't have to worry about it later.


    1984 Grand Marquis GS - CFI-SEFI conversion, Explorer 302, GT40 intakes, GT40P heads, 1.7 roller rockers, HO Cam, ASP Underdrive Pulley, 2.5" Dual exhaust, Flowmaster Delta 50 mufflers, 3.55 Trac-Lock, Rear disk's, Moog cargo coils, ES rear poly bushings, PI front and rear sway bars, 3G alt., Mark VIII fan, custom Auto-meter dash
    1990 Crown Victoria Country Squire - Explorer 302, HO cam, dual exhaust, 3.55 Trac-Lock, PI rear sway bar (SOLD)
    1982 LTD Wagon (R.I.P.) -|-1984 Grand Marquis LS(R.I.P.)

    Comment

      #3
      what donor year are you going with?? you'll need to make sure the wiring and vacuum hoses and parts match - 86-89 and 90-91 are two different setups.

      Im glad you're doing this 1st so I can learn from any holdups you have

      PS Im stealing this into the CFI forum once your're done
      Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
      'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
      sigpic
      85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo

      Comment

        #4
        Ok, started working on it again. CFI unit and intake are out, plus one valve cover. Need to go get some gaskets, new pcv valve, and degreaser to clean up the efi stuff. Will be working on it more tonight. I have been writing every step down so i'l remember later.


        1984 Grand Marquis GS - CFI-SEFI conversion, Explorer 302, GT40 intakes, GT40P heads, 1.7 roller rockers, HO Cam, ASP Underdrive Pulley, 2.5" Dual exhaust, Flowmaster Delta 50 mufflers, 3.55 Trac-Lock, Rear disk's, Moog cargo coils, ES rear poly bushings, PI front and rear sway bars, 3G alt., Mark VIII fan, custom Auto-meter dash
        1990 Crown Victoria Country Squire - Explorer 302, HO cam, dual exhaust, 3.55 Trac-Lock, PI rear sway bar (SOLD)
        1982 LTD Wagon (R.I.P.) -|-1984 Grand Marquis LS(R.I.P.)

        Comment

          #5
          you can use your CFI PCV valve if its still good, just yank the plastic end off it
          Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
          'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
          sigpic
          85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo

          Comment

            #6
            Originally posted by 85crownHPP* View Post
            what donor year are you going with?? you'll need to make sure the wiring and vacuum hoses and parts match - 86-89 and 90-91 are two different setups.

            Im glad you're doing this 1st so I can learn from any holdups you have

            PS Im stealing this into the CFI forum once your're done
            I went with an '87 for everything, non integrated cruise and a few other things i liked better.

            Well, i've been running into a lot of problems tonight, but none have to do with the swap itself. I've been putting the lower intake manifold back on. Got it cleaned up, got the gaskets ready, started putting it on, and i broke the passenger side front bolt off at only about 20ft lbs. So i had to take the whole thing back off, get the broken bolt out of the block and start over. The second time i got everything torqued down to spec and i went to put the coolant temp sensor in for my gauge and the corner of the intake cracked and broke off. So now i am stuck until i go get another intake at the junk yard. shit!

            So far the one difference i see between the two setups is the efi intake doesn't have a hole for the alternator bracket support piece that was on the before. Not something i'm to worried about though.


            1984 Grand Marquis GS - CFI-SEFI conversion, Explorer 302, GT40 intakes, GT40P heads, 1.7 roller rockers, HO Cam, ASP Underdrive Pulley, 2.5" Dual exhaust, Flowmaster Delta 50 mufflers, 3.55 Trac-Lock, Rear disk's, Moog cargo coils, ES rear poly bushings, PI front and rear sway bars, 3G alt., Mark VIII fan, custom Auto-meter dash
            1990 Crown Victoria Country Squire - Explorer 302, HO cam, dual exhaust, 3.55 Trac-Lock, PI rear sway bar (SOLD)
            1982 LTD Wagon (R.I.P.) -|-1984 Grand Marquis LS(R.I.P.)

            Comment

              #7
              Awesome

              Junkyard is closed today, work the next four, 12 hour shifts, so it looks like sunday or monday...

              Cracked right through the temp sensor hole:
              Attached Files


              1984 Grand Marquis GS - CFI-SEFI conversion, Explorer 302, GT40 intakes, GT40P heads, 1.7 roller rockers, HO Cam, ASP Underdrive Pulley, 2.5" Dual exhaust, Flowmaster Delta 50 mufflers, 3.55 Trac-Lock, Rear disk's, Moog cargo coils, ES rear poly bushings, PI front and rear sway bars, 3G alt., Mark VIII fan, custom Auto-meter dash
              1990 Crown Victoria Country Squire - Explorer 302, HO cam, dual exhaust, 3.55 Trac-Lock, PI rear sway bar (SOLD)
              1982 LTD Wagon (R.I.P.) -|-1984 Grand Marquis LS(R.I.P.)

              Comment

                #8
                Originally posted by FatNasty View Post
                So far the one difference i see between the two setups is the efi intake doesn't have a hole for the alternator bracket support piece that was on the before. Not something i'm to worried about though.
                The EFI manifolds used a bolt with a stud sticking out the top. The support bracket sits on the stud and there is a nut holding it down. The support bracket itself may be slightly different than your stock one. Probably have to snatch one off an EFI car with an externally regulated alternator. I know the little bracket is different between internal and external regulators. You could probably also just snatch the whole upper alternator bracket with the support rod and use it.
                86 Lincoln Town Car (Galactica).
                5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                91 Lincoln Mark VII LSC grandpa spec white and cranberry

                1984 Lincoln Continental TurboDiesel - rolls coal

                Originally posted by phayzer5
                I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                Comment

                  #9
                  Well i went to the junkyard this morning and got another lower, an efi alternator bracket, and an air cleaner box. Also snagged some HO goodies for later; Upper, TB, EGR spacer, Injectors. This time i'l carefully screw in all the sensors before i install it.

                  I'm not to worried at all about having issues with wiring, its all pretty straight forward, but that will be the last step. Not sure about the throttle cables, that will be near the end too, but i dont think i'l have any huge problems.


                  1984 Grand Marquis GS - CFI-SEFI conversion, Explorer 302, GT40 intakes, GT40P heads, 1.7 roller rockers, HO Cam, ASP Underdrive Pulley, 2.5" Dual exhaust, Flowmaster Delta 50 mufflers, 3.55 Trac-Lock, Rear disk's, Moog cargo coils, ES rear poly bushings, PI front and rear sway bars, 3G alt., Mark VIII fan, custom Auto-meter dash
                  1990 Crown Victoria Country Squire - Explorer 302, HO cam, dual exhaust, 3.55 Trac-Lock, PI rear sway bar (SOLD)
                  1982 LTD Wagon (R.I.P.) -|-1984 Grand Marquis LS(R.I.P.)

                  Comment

                    #10
                    I think the throttle cable might be different. I know the tv rod isn't gonna work but I don't see any real problems with simply installing the brackets for the TV cable off a later year car. Its going to be all those little details that are more frustrating than anything else. Wiring should be a simple matter. Only need a few wires from the ignition and back to the fuel pump. The rest is all self-contained.
                    86 Lincoln Town Car (Galactica).
                    5.0 HO, CompCams XE258,Scorpion 1.72 roller rockers, 3.55 K code rear, tow package, BHPerformance ported E7 heads, Tmoss Explorer intake, 65mm throttle body, Hedman 1 5/8" headers, 2.5" dual exhaust, ASP underdrive pulley

                    91 Lincoln Mark VII LSC grandpa spec white and cranberry

                    1984 Lincoln Continental TurboDiesel - rolls coal

                    Originally posted by phayzer5
                    I drive a Lincoln. I can't be bothered to shift like the peasants and rabble rousers

                    Comment

                      #11
                      Im sure the cable is different... but yeah just nab the whole setup off the donor car.
                      Im interested to see how you do the fuel lines... I was planning on just cutting ends off and using rubber high pressure hose.
                      Pete ::::>>> resident LED addict and CFI defector LED bulb replacements
                      'LTD HPP' 85 Vic (my rusty baby) '06 Honda Reflex 250cc 'Baileys' 91 Vic (faded cream puff) ClifFord 'ODB' 88 P72 (SOLD) '77 LTDII (RIP)
                      sigpic
                      85HPP's most noteworthy mods: CFI to SEFI conversion w/HO upperstuff headers & flowmasters P71 airbox Towncar seats LED dash light-show center console w/5 gauge package LED 3rd brake light 3G alternator mini starter washer/coolant bottle upgrade Towncar power trunk pull underhood fuse/relay box 16" HPP wheels - police swaybars w/poly rubbers - budget Alpine driven 10 speaker stereo

                      Comment

                        #12
                        Got the manifold on now, without breaking bolts or cracking it. Was sweating bullets the whole time torquing it down, and screwing in the sensors. Back to work on it in the morning...

                        Anyone got a part number for the filter/screen below the pcv valve?

                        Originally posted by 85crownHPP* View Post
                        Im sure the cable is different... but yeah just nab the whole setup off the donor car.
                        Im interested to see how you do the fuel lines... I was planning on just cutting ends off and using rubber high pressure hose.
                        Should a 50psi EFI rubber fuel line with those special fuel line hose clamps that don't pinch be sufficient?


                        1984 Grand Marquis GS - CFI-SEFI conversion, Explorer 302, GT40 intakes, GT40P heads, 1.7 roller rockers, HO Cam, ASP Underdrive Pulley, 2.5" Dual exhaust, Flowmaster Delta 50 mufflers, 3.55 Trac-Lock, Rear disk's, Moog cargo coils, ES rear poly bushings, PI front and rear sway bars, 3G alt., Mark VIII fan, custom Auto-meter dash
                        1990 Crown Victoria Country Squire - Explorer 302, HO cam, dual exhaust, 3.55 Trac-Lock, PI rear sway bar (SOLD)
                        1982 LTD Wagon (R.I.P.) -|-1984 Grand Marquis LS(R.I.P.)

                        Comment

                          #13
                          Originally posted by FatNasty View Post
                          Got the manifold on now, without breaking bolts or cracking it. Was sweating bullets the whole time torquing it down, and screwing in the sensors. Back to work on it in the morning...

                          Anyone got a part number for the filter/screen below the pcv valve?



                          Should a 50psi EFI rubber fuel line with those special fuel line hose clamps that don't pinch be sufficient?
                          efi hose and fuel line clamps are sufficient....i have done this on several panthers when the hard plastic line failed


                          1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
                          2006 Lincoln Town Car Signature. Stock for now
                          1989 Ford F-250 4x4 much much more to come, sefi converted so far.
                          1986 Toyota pickup with LSC wheels and 225/60/16 tires.
                          2008 Hyundai Elantra future Revcon toad
                          1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

                          please be patient, rebuilding an empire!

                          Comment

                            #14
                            Got some of the old cfi smog stuff cleaned up, and organized the vaccum lines some. Also put on a drivers side exhaust manifold with oxygen sensor. Next will be hooking the tv cable to the transmission and hooking up fuel lines.

                            Where exactly does the line going to the charcoal container hook up to the intake?


                            Originally posted by lincolnmania View Post
                            efi hose and fuel line clamps are sufficient....i have done this on several panthers when the hard plastic line failed

                            This should be an easy fix then, thanks scott.


                            1984 Grand Marquis GS - CFI-SEFI conversion, Explorer 302, GT40 intakes, GT40P heads, 1.7 roller rockers, HO Cam, ASP Underdrive Pulley, 2.5" Dual exhaust, Flowmaster Delta 50 mufflers, 3.55 Trac-Lock, Rear disk's, Moog cargo coils, ES rear poly bushings, PI front and rear sway bars, 3G alt., Mark VIII fan, custom Auto-meter dash
                            1990 Crown Victoria Country Squire - Explorer 302, HO cam, dual exhaust, 3.55 Trac-Lock, PI rear sway bar (SOLD)
                            1982 LTD Wagon (R.I.P.) -|-1984 Grand Marquis LS(R.I.P.)

                            Comment

                              #15
                              front of the efi intake fitting under the front half......you are talking about the canister purge soleniod hose correct?

                              1986 lincoln towncar signature series. 5.0 HO with thumper performance ported e7 heads, 1.7 roller rockers, warm air intake, 65mm throttle body, 1/2" intake spacer, ported intakes, 3.73 rear with trac lock, 98-02 front brake conversion, 92-97 rear disc conversion, 1" rear swaybar, 1 3/16" front swaybar, 16" wheels and tires, loud ass stereo system, badass cb, best time to date 15.94 at 87 mph. lots of mods in the works 221.8 rwhp 278 rwt
                              2006 Lincoln Town Car Signature. Stock for now
                              1989 Ford F-250 4x4 much much more to come, sefi converted so far.
                              1986 Toyota pickup with LSC wheels and 225/60/16 tires.
                              2008 Hyundai Elantra future Revcon toad
                              1987 TriBurner and 1986 Alaska stokers keeping me warm. (and some pesky oil heat)

                              please be patient, rebuilding an empire!

                              Comment

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