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Rpm going crazy help!

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    Rpm going crazy help!

    Well I just did my egr ports and double stacked my intake manifold and now when I go to start the car it revs to 5k then drops to 500 and keeps reving like that....any ideas I'm thinking a vacum leak or something
    Last edited by bliz07; 06-20-2009, 05:06 PM.
    Stuff 4 sale 2nd gen dsm turbo manifold, ebay type s blowoff valve, 93 ex pt6 ecu, f22a6 camshaft, f22a6 intake manifold, obd1 p13 ecu

    #2
    Sounds like a vacuum leak to me, made even more probable since you had the IM off.
    Originally posted by 92dm
    I was actually just being a smart ass, and not really contributing to this at all.
    VOUCHES
    Bought from: cb95spd

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      #3
      Did you ever find out what was causing your surging problem?

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        #4
        Bleed the coolant system.

        I vacuum leak wouldn't be that aggressive. Maybe to 3k max, but not 5k. Mine did this type of surge when I took my plenum off, and put it back together. Had to bleed the coolant system.
        Last edited by Gotz Cb7; 07-03-2009, 02:58 AM.
        98' Mustang 3V Swap
        11' VW CC R36

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          #5
          try this, unplug the ivac valve plug and also remove back up fuse(top right 7.5 amp) in the fuse box wait like 5 mins then plug the ivac first then the back up fuse back in and start the engine see if will fix it

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            #6
            Check the PCV valve. It probably got disconnected or is leaking somehow. The same thing happened to me.

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