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    #1

    idling crappiness

    Sorry to bug you guys again, but I'm at a dead end with very similar problems to the ones i had a while back when I posted.

    My standard '85 CV idles for shit, and the stalling at low RPM's is ridiculous. I replaced my TFI module, distributor, ignition coil, plugs (gapped at .50), plug wires, fuel filter, ECU, thermostat, engine coolant temp sensor (the car was running a tad hot... that's fixed now), and O2 sensors, while adjusting my timing back to the 10 BTDC it oughtta be at. Still, it can't idle worth a shit. Stalls and dies at low end, and pours black smoke out the muffler. My cats and muffler clogged due to this, so i replaced them, too, although with the embarrassing stock single exhaust. Can't seem to make any progress with a terribly rich mixture, either. Anything I should check that tends to be a common issue that deals with low end stalling?

    Thanks in advance.
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    #2
    Check the vac line at the MAP sensor along with the sensor itself. IIRC, when they go bad they go bad in a direction that causes your car to run rich...

    RIP Jason P Harril, we'll miss ya bro

    '80 Town Coupé
    '84 Towncar - Teh Cobra TC, 408w powered
    '16 Ram 1500 CC Outdoorsman, Hemi/3.92/8sp 4x4

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      #3
      aha... will check that tomorry.

      Comment

        #4
        fuel filter, pump, regulator also can cause issues. Same with a stuck injector.
        Builder/Owner of Badass Panther Wagons

        Busy maintaining a fleet of Fords

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          #5
          I'm also going to go with vacuum problem or bad MAP. They don't fail all that often though, so a cracked line is more likely.
          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

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            #6
            Yes a bad line to map. Black smoke, stalling, idled for shit. Do you get any codes?

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              #7
              He has a CFI, does those have a MAP?
              2000 Grand Marquis LS
              2000 F150 XLT 6 inches of lift.
              1987 Bill Blass Mark VII - Sold
              1985 Mercury Grand Marquis Colony Park- SOLD. to a little old lady
              Mercury Owners Group member
              Save The Whales, Restore an Old Station Wagon!!

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                #8
                Yes. I think its on the fender on a CFI car though.
                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

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                  #9
                  where is my map sensor, exactly? no codes, for now. my friend borrowed my code reader. i'll get back to you on that one tomorrow or so. i'll also check the vacuum line tomorrow. thanks.

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                    #10
                    'twas the MAP sensor. thanks, guys.

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