Announcement

Collapse
No announcement yet.

Throttle Position Sensor.

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

    #16
    hook up the meter and open the throttle. The voltage should smoothly increase with the throttle being opened.


    The egr regulator is on the pass side inner fender. its the one with the red and green hose. remove the cap from the solenoid and there is a foam filter in there, provided it hasn't turned to dust. Clean it or clean the remains of it out of the solenoid and shoot some wd40 down the tube that sticks out into the filter. I'd still try it with the vac line unhooked though just in case the regulator is faulty. Mine was bad and going full open just off idle. I had a hesitation for years that I couldn't explain until I unhooked the egr valve. I did eventually replace the regulator but the wd40 trick made it work while i was waiting on the replacement.
    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


      #17
      Ok just returned from the car. Obtained the following figures:
      Steady reading of .997 in the idle position. The figures increased at a steady rate as I opened the throttle.........at wot the figures were between 3.62 volt and 4.00 volt. Your thoughts?
      Also, cleaned out the egr solenoid, as you thought, the foam was long gone.........blew out the inside, then gave a few good shots of WD-40 down the single tube that sticks out from the housing. As I will not be utilizing the car today, I will have to wait to report how the initial pull away is, and if I still experience stumble while cold.
      But as far as the TBS goes, would you say I should keep the one now on the car?/

      Comment


        #18
        when using a digital meter, it's hard to catch spikes/drops in the middle as you sweep it. The end points are good though. If you can grab a cheapo meter that uses a needle and use it to check, if the needle jerks at any point, its' bad, if not, it's good.

        Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
        rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

        Originally posted by gadget73
        ... and it should all work like magic and unicorns and stuff.

        Originally posted by dmccaig
        Overhead, some poor bastards are flying in airplanes.

        Comment


          #19
          Those results wouldn't make me say the TPS is bad. I would agree that an analog will be a better tester for this, but normally when the TPS is shot, its fairly obvious even with a digital meter that the voltages are going nuts.
          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


            #20
            If hitting the egr solenoid with wd-40 results in no more problems, should I plan on getting a new one?

            Comment


              #21
              Wouldn't hurt, though its also possible that a simple cleanout will allow it to work properly for a long time. I really have no idea.
              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


                #22
                Guess I will have to wait to drive the car, if no better I will purchase another solenoid.

                Comment


                  #23
                  Just unhook the egr vacuum line. If it doesn't run any better, nothing in the egr system is the cause of your problem.
                  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


                    #24
                    Are you speaking of the single hose that is attached to the EGR Valve Body itself?
                    If it runs better, then I purchase a new solenoid?

                    Comment


                      #25
                      yes, and possibly. You'd probably want to delve into it a little further by hooking up a vacuum gauge and checking exactly what it does when the car runs funny but that would mostly be to prove out what the EVR is doing. When mine went funky, it was 0% or 100% instead of varying and smoothly opening like it should have been doing. 100% EGR just off-idle makes for a nice hesitation. After shooting some oil in the solenoid I could watch it vary from 0-8" (8" vacuum = 100% open) smoothly and the hesitation had gone away. This may not be your problem at all, its just one possibility based on my own experiences.
                      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


                        #26
                        Well consider that I have replaced the following in my quest for a smooth running engine..................new ECU, new water temp sensor, new EGR and EGR sensor (attached to the EGR body) ..new spark plugs, cleaned the TB internal butterflies, cleaned the inside of the IAC, I am determined to find the cause of cold stumble upon pull away!

                        Comment


                          #27
                          I've had similar problems caused by an intake leak. Spray some carb cleaner around the edge of the intake and see if the idle changes.
                          1985 LTD Crown Victoria - Currently restoring after she caught fire! CFI to SEFI to Carb swap, all custom wiring, Duraspark 2 ignition, Motorcraft 2100 Carb, slicktop, Shorty headers dumped before rear axle, 140 Speedo, 3G alt, And currently building an engine for her.

                          2000 Lincoln Town Car Signature Series - 165XXX, PI intake swap , 30 MPG Easy on the Highway, All options except dual exhaust. Currently looking for 2 front seats: Heated, Memory, and Light Graphite color!!

                          Comment


                            #28
                            have you replaced the all of the vacuum lines under the intake, the PCV parts, and the fuel filter? If not, do so. What about the plug wires and the distributor cap and rotor?
                            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


                              #29
                              +1 check the vacuum and PCV lines. On my 88, the PCV lines were like rocks and kinda loose. pretty big leaks there. I replaced with fuel hose. That was 4 years. Those hoses are still nice and limber. I also replaced the line to the EVAP solenoid with fuel hose too (well, just to the edge of the intake plenum so I could easily replace the rest of that line in the future).

                              Only two things are infinite, the universe and human stupidity, and I'm not sure about the former. -- Albert Einstein
                              rides: 93 Crown Vic LX (The Red Velvet Cake), 2000 Crown Vic base model (Sandy), 2003 Expedition (the vacation beast)

                              Originally posted by gadget73
                              ... and it should all work like magic and unicorns and stuff.

                              Originally posted by dmccaig
                              Overhead, some poor bastards are flying in airplanes.

                              Comment


                                #30
                                In addition to all new heater hoses last month, all vac hoses changed........wires were changed five yrs ago as was the cap and the rotor. New pcv valve last month.

                                Comment

                                Working...
                                X