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    #31
    could this be an egr issue?
    1988 MGM GS - Preferred Equipment Package 172A; InstaClear

    1980 Lincoln Continental Coupe
    1994 MGM GS Montigua
    2005 F150 Lariat Scab 4x4 3.73 LS
    2002 Mustang GT Coupe

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      #32
      According to my Haynes shop book there are almost 80 codes and you have to use a voltmeter to access them ..... hmmm never done this type of diagnostic before. I might call up the local Ford dealer tomorrow and see if their mechanics are still familiar with doing this. I do not mind doing the work, but certainly do not want to wreck my computor.

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        #33


        1988 MGM GS - Preferred Equipment Package 172A; InstaClear

        1980 Lincoln Continental Coupe
        1994 MGM GS Montigua
        2005 F150 Lariat Scab 4x4 3.73 LS
        2002 Mustang GT Coupe

        Comment

          #34
          Originally posted by dugal View Post
          According to my Haynes shop book there are almost 80 codes and you have to use a voltmeter to access them ..... hmmm never done this type of diagnostic before. I might call up the local Ford dealer tomorrow and see if their mechanics are still familiar with doing this. I do not mind doing the work, but certainly do not want to wreck my computor.
          http://fordfuelinjection.com/?p=13
          2020 F250 - 7.3 4x4 CCSB STX 3.55's - BAKFlip MX4
          2005 Grand Marquis GS - Marauder sway bars, Marauder exhaust, KYB's
          2003 Marauder - Trilogy # 8, JLT, kooks, 2.5" exhaust, 4.10's/31 spline, widened rear's, metco's, addco's, ridetech's 415hp/381tq
          1987 Colony Park - 03+ frame swap, blown Gen II Coyote, 6R80, ridetechs, stainless works, absolute money pit. WIP

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            #35
            I think I last used a Haynes manual to level out a couch with a broken foot. That was the best use I ever got out of the thing.
            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

            Everything looks like voodoo if you don't understand how it works

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              #36
              Originally posted by gadget73 View Post
              I think I last used a Haynes manual to level out a couch with a broken foot. That was the best use I ever got out of the thing.
              theyre good for noobs to get familiar with things, though. and leveling couches.
              1988 MGM GS - Preferred Equipment Package 172A; InstaClear

              1980 Lincoln Continental Coupe
              1994 MGM GS Montigua
              2005 F150 Lariat Scab 4x4 3.73 LS
              2002 Mustang GT Coupe

              Comment

                #37
                Originally posted by dugal View Post
                According to my Haynes shop book there are almost 80 codes and you have to use a voltmeter to access them ..... hmmm never done this type of diagnostic before. I might call up the local Ford dealer tomorrow and see if their mechanics are still familiar with doing this. I do not mind doing the work, but certainly do not want to wreck my computor.
                you just ground the self test input on the EEC-IV connector in the engine bay, then turn the key to ON but not to run, and count out blinks of your check engine light. check the codes against the list at fordfuelinjection.com - that's as complicated as it gets for these cars.
                sigpic


                - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

                - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

                - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

                Comment

                  #38
                  Originally posted by rick99601 View Post
                  theyre good for noobs to get familiar with things, though. and leveling couches.


                  I still refer to mine from time to time for capacities and similar garbage. Torque specs, too.

                  Retarded thing about Box Panther Haynes manuals is they were intended to cover all "fullsize" models from '68, which means tons of pages with useless things like blowups of a C6 or a 460, and then when they have diagrams you need for things like dash parts or door panels it shows a '75 model, which looks completely different.
                  2012 Mazda5 Touring | Finally working on the LTD again!

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                    #39
                    my hanes manual covers 88-94
                    sigpic


                    - 1990 Ford LTD Crown Victoria P72 - the street boat - 5.0 liter EFI - Ported HO intake/TB, 90 TC shroud/overflow, Aero airbox/zip tube, Cobra camshaft, 19lb injectors, dual exhaust w/ Magnaflows, Cat/Smog & AC delete, 3G alternator, MOOG chassis parts & KYB cop shocks, 215/70r/15s on 95-97 Merc rims

                    - 2007 Ford Escape XLT - soccer mom lifted station wagon - 3.0 Duratec, auto, rear converter delete w/ Magnaflow dual exhaust

                    - 2008 Mercury Grand Marquis Ultimate Edition - Daily driver - 4.6 2 valve Mod motor, 4R75E, 2.73s. Bone stock

                    Comment

                      #40
                      Originally posted by dugal View Post
                      My "check engine light" came on last week.... 1990 CV 5.0 The car never runs hot and actually I think it runs on the cool side. Just a day or so before the light coming on I replaced both serpentine belts and had the alternator rebuilt. THe old belts were worn out and slipping. The new ones are on good and tight.
                      The check engine light only comes on at idle and goes off when accelerating. I wonder if the engine RPM had dropped at idle because of the tighter belts ... Any ideas ?
                      Regards
                      Doug
                      EGR valve position sensor. If it just flashes at you. If it's at the same general throttle position every time, I would bet the TPS.

                      Some codes are more important than others. Anything that would be found out of the ordinary in the day to day driving of the car will put on the light.

                      Stuff that would only be found through the self test won't put on the light. Since the computer never tests the circuits that aren't normally used. That's why the check engine light won't come on when the Air pump stuff is disconnected, but when a sensor, such as the ECT, TPS, MAP, etc. are unplugged the computer will recognize the fault almost immediately.
                      Last edited by 86VickyLX; 01-06-2011, 01:59 PM.

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                        #41
                        Originally posted by 1990LTD View Post
                        you just ground the self test input on the EEC-IV connector in the engine bay, then turn the key to ON but not to run, and count out blinks of your check engine light. check the codes against the list at fordfuelinjection.com - that's as complicated as it gets for these cars.
                        As complicated as it gets until you need... THE BREAK-OUT BOX! (DUN DUN DUN!) Thank you Ford for not gracing us with streaming data of any kind until federally mandated...

                        Comment

                          #42
                          Originally posted by 87CrownVic View Post
                          As complicated as it gets until you need... THE BREAK-OUT BOX! (DUN DUN DUN!) Thank you Ford for not gracing us with streaming data of any kind until federally mandated...
                          They had it before it was federally mandated. haha. The early 4.6 panthers ('92-'95) and the '94 an '95 mustangs had it too. And they were still EEC-IV (pre OBDII)

                          Comment

                            #43
                            Alright, I shouldn't say "of any kind", but still painfully limited. I always hate to admit that I have enjoyed owning and working on the late 80's-early 90's Chrysler vehicles I have owned over the years due to their diagnostic aids and abundance of streaming data. I'll never stop hating o2 crosscounts and integrator/block learn, but I'd troubleshoot any crazy GM or Chrysler bug faster than I would on some crappy Tempo or Sable. Don't get me wrong, I love my Ford/Lincoln/Mercury masterpieces, but I don't think that would have been a fun time to be a Ford technician.

                            For those who don't know what I'm talking about, THIS:
                            Click image for larger version Name: BOB.jpg Views: 1 Size: 86.4 KB ID: 1263958
                            is total bullshit.

                            Comment

                              #44
                              Originally posted by rick99601 View Post



                              damn i wish my car was eec IV. Is there any way to do this with an eec iii car. I got only one plug but can you jump the connections to do the test yourself.

                              1982 Lincoln Continental Mark VI Bill Blass Designer Series 2-Door(Larisa)                              -Mods: HO Roller 302, GT40P Heads, Explorer Intakes, HO ECM(D9S), Autodimming w/compass and outside temp rearview mirror, Daniel Stern Lighting Mod, Dual Exhaust, 90's GM C/K Series Retractable Hood Light, Red Digital Dash Display, 92-94 White Leather Town Car Signature Cupholder Armrests, HPP Wheels, Police PS Cooler, Police Trans Cooler. More to come!!!!
                              1998 Ford Explorer Limited 5.0 AWD(Fiona)-Mods: Lincoln Navigator THX Audio System, Ford Explorer Sport Instrument Cluster.

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                                #45
                                OK,
                                Tested the car today at a buddy's garage. He had a Snap-on tester. It was a code 63 .... the TPS ...Throttle Position Sensor. Ordered a new one and will put it on this weekend. Not sure if the code will clear by itself after the repairs. My guess is it will. Has been a learning experience and thanks to everyone here for that !
                                Cheers

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