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    running problems

    hey guys i need some help. recently i have installed a set of aftermarket gages for my car, which for some reason caused a check engine light but i believe that is because when i installed them i got rid of one of the temprature sensors, maby at least thats all i can figure, other than that ever since then its had problems idling, for some reason it idles really high after it warms up, when its cold its like it idles too low because when you put it in gear it will stall but if you start it and run the idle up a bit its just fine, i am honestly at my wits end to figure out what it is. the air cleaner is just fine i checked it, the pcv valve and its components are ok, any advice you could give me would be more than appreciated, also if you could point me in a direction where i could get a drivers rear quarter panel, so i can start to rebuild where i got t boned that would also be awesome, thanks guys

    #2
    I don't know specifically which temp sensors controls what but one of them will control whether your car is in the enriching stage(choke) or not and if that sensor is not there I'm going to guess the computer is going to think the engine is cold and keep you in the enriching stage, or it could be doing the opposite.

    I should probably ask for some details about your car since I'm assuming you have fuel injection with this response. So year and engine would be good info for us.
    '85 Mercury Grand Marquis
    only MSD multi-spark so far but hopefully a 351 on the way.

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      #3
      Put the sensor you removed for the new temp gauge back and see if the problem is gone.

      I put in aftermarket gauges as well and for my temp gauge I installed it right on the from of the lower intake. That sensor is just for a dummy light in the dash. With it out nothing lights up anyway. I believe there is another more important temp sensor that should remain on the engine...this may be your problem so put it back and see if the problem goes away.
      ~David~

      My 1987 Crown Victoria Coupe: The Brown Blob
      My 2004 Mercedes Benz E320:The Benz

      Originally posted by ootdega
      My life is a long series of "nevermind" and "I guess not."

      Originally posted by DerekTheGreat
      But, that's just coming from me, this site's biggest pessimist. Best of luck

      Originally posted by gadget73
      my car starts and it has AC. Yours doesn't start and it has no AC. Seems obvious to me.




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        #4
        coooooooooodes
        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


          #5
          Originally posted by farmboy View Post
          hey guys i need some help. recently i have installed a set of aftermarket gages for my car, which for some reason caused a check engine light but i believe that is because when i installed them i got rid of one of the temprature sensors, maby at least thats all i can figure, other than that ever since then its had problems idling, for some reason it idles really high after it warms up, when its cold its like it idles too low because when you put it in gear it will stall but if you start it and run the idle up a bit its just fine, i am honestly at my wits end to figure out what it is. the air cleaner is just fine i checked it, the pcv valve and its components are ok, any advice you could give me would be more than appreciated, also if you could point me in a direction where i could get a drivers rear quarter panel, so i can start to rebuild where i got t boned that would also be awesome, thanks guys
          If you have an 86+ EFI car, you may have disconnected the Engine Coolant Temp sensor. It's a two wire sensor on the upper radiator hose. This controls mixture based on engine temp and will do all kinds of crazy stuff if you unhook it.

          Friendly words of advice: Short, complete sentences are your friends. The more people that can understand what you're trying to communicate, the more people will be willing to try and help you out.
          Originally posted by gadget73
          There is nothing more permanent than a temporary fix.
          91 Mercury CP, Lopo 302, AOD, 3.08LSD. 3g upgrade, Moog wagon coils up front, cc819s in the back. KYB GR-2 police shocks. Energy suspension control arm bushings. Smog deleted.
          93 F-150 XLT, 302, ZF 5-spd from 1-ton, 4wd.
          Daily--07 Civic Coupe. Bone stock with 25k miles
          Wife--14 Subaru Outback. 6-speed.
          95 Subaru Legacy Wagon--red--STOLEN 1/6/13

          Comment


            #6
            Exactly which sensor(s) did you remove? Pics of the sensors, or at least where they were located would help. Easiest way to see if thats what it is though is to simply put it back how it was and see if the problem is fixed. One of the temperature sensors is critical for the ECM, one is not. If you pull the wrong one, it'll get stupid.

            Also, what year car and what engine? Parts are in different places sometimes.
            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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