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TPS Sensor. Idle. Thermostat.

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    #1

    TPS Sensor. Idle. Thermostat.

    Alright so I had raised my idle this mornign to see if that would help at all. I was idoling real low. Sometimes the car would warm up and idol at around 500. The car surges like most 5.0s I beleive that's from the thermostat? Could that be why the idol changed that much when it warms up?

    So with the idol high it didn't help anything. Later I adjusted the TPS. Took it for a ride. No more choking and almost stalling from an idol launch. I lowered the idol. I drove aroudn doing what I needed to do. At first it was fine.. than on my way home.. noticed it started choking again. I raised the idol again and it went away. I'll have to see if the car sputters at all tomorrow morning or anytime in the future.

    Is it just because I didn't have everythign set right? Is it right now.... Adjusted TPS and higher Idol.. or will again tomorrow it fuck up once again...
    1989 LTD Crown Victoria LX.
    -3.73s' w/ Track Loc - KYB GR-2 Shocks All Around - TRW HD Cargo Coils Rear - Moog Front Coils - 1 Inch Rear Sway Bar - 4.6 Lower Air Box- Stock Headers - Off Road H Pipe - Turbo Mufflers.

    4 Door Muscle
    Supermotors
    Tags: None
    #2
    could be the coolant temp sensor. That f's up alot of the stuff like MPG and idle. Also pretty common failure.

    And did you reset the ECM after you adjusted the TPS?

    The TPS could just be shot too...
    Builder/Owner of Badass Panther Wagons

    Busy maintaining a fleet of Fords

    Comment

      #3
      Hmm. ECM, lol... no.

      Um...I don't know.. the TPS might be shot.. but as of right now with the idol set where it is.. and the TPS set.. it seems fine. I'll see how it is tomorrow morning and threw out the day.
      1989 LTD Crown Victoria LX.
      -3.73s' w/ Track Loc - KYB GR-2 Shocks All Around - TRW HD Cargo Coils Rear - Moog Front Coils - 1 Inch Rear Sway Bar - 4.6 Lower Air Box- Stock Headers - Off Road H Pipe - Turbo Mufflers.

      4 Door Muscle
      Supermotors

      Comment

        #4
        IDLE.

        The TPS should be set using a voltmeter. Probe the green wire and set it to 1.0v or as close to it as you can get. You might have a bad IAC or TPS. The coolant temp sensor might need to be cleaned, or you may have a vacuum leak. All of those will make the idle surge like that.

        Some guy I know wrote up a how-to on adjusting the TPS. Perhaps it will be useful.

        Lincolns OnLine | Tech Tips and Articles
        http://www.lincolnsonline.com/tech/00127.html
        This is a must-see site for fans of American luxury hot rods. Message forums, tech advice, news, and automotive performance links are offered for Lincoln Mark VIII and Mark VII, Lincoln LS, Town Car, Continental, Navigator, Aviator, Zephyr, MKR, MKS, MKZ and more.
        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

          #5
          I think my TPS is bad.. or something is bad. When the car warms up everytign fucks up. My idle is set high.. around 650. When the car warms up it drops to 500. I Set the idle when the car was warm.. and did hte TPS.. and it was fine. This mornign it started fucking up again.. and when the car warmed up the idol dropped to around 500. Maybe I need to set the TPS again and the idle.. and than unplug the battery and reset the ECU. OR maybe I have bad sensors?
          1989 LTD Crown Victoria LX.
          -3.73s' w/ Track Loc - KYB GR-2 Shocks All Around - TRW HD Cargo Coils Rear - Moog Front Coils - 1 Inch Rear Sway Bar - 4.6 Lower Air Box- Stock Headers - Off Road H Pipe - Turbo Mufflers.

          4 Door Muscle
          Supermotors

          Comment

            #6
            Jesus Christ... we only told you to check the ECM for codes a thousand times, even sent you a link how to do it with out a scanner.

            STOP FUCKING WHINING AND CHECK FOR CODES!!!!!
            2003 Town Car Signature - 3.27 RAR, Dual exhaust and J-mod - SOLD 9/2011
            89 Crown Victoria LX HPP -- SOLD 9/2010
            88 Grand Marquis LS - The Original -- Totaled 5/2006

            I rebuild AOD/AODE/4R70W/4R75E transmissions....Check out my Facebook page: https://www.facebook.com/pages/North...48414635312478

            Comment

              #7
              :stupid:

              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

                #8
                Gotta second that :stupid:
                1983 Grand Marquis 2Dr Sedan "Mercules"
                Tremec TKO conversion, hydraulic clutch, HURST equipped!

                Comment

                  #9
                  Well when you fuck around with the TPS and idle.... and it starts working.... it pretty much says.. it's the TPS and I don't need to flash the codes.
                  1989 LTD Crown Victoria LX.
                  -3.73s' w/ Track Loc - KYB GR-2 Shocks All Around - TRW HD Cargo Coils Rear - Moog Front Coils - 1 Inch Rear Sway Bar - 4.6 Lower Air Box- Stock Headers - Off Road H Pipe - Turbo Mufflers.

                  4 Door Muscle
                  Supermotors

                  Comment

                    #10
                    Originally posted by BlackHawkA4
                    Well when you fuck around with the TPS and idle.... and it starts working.... it pretty much says.. it's the TPS and I don't need to flash the codes.
                    No it doesn't. Cars are not that simple anymore, hence why not everyone works on them. It could be something related to it. It could be you are bumping a wire to something else. It could be you are creating an air leak somewhere. It could be a lot of things, check the codes, don't be an idiot and waste time and money on chasing symptoms.

                    Comment

                      #11
                      When you bump the TPS the ECM thinks you have given it a little more throttle so you get a bit more fuel and the idle goes up. After a while, the computer re-learns the idle reading from the TPS and adjusts itself to make the idle where it belongs. If you have a consistantly low idle, there is something causing it. Check the codes, check the TPS. These are both free tests that may tell you something useful.
                      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

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