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    rocket1921's Avatar
    rocket1921 Posts: 5, Reputation: 1
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    #1

    Nov 5, 2009, 04:07 PM
    1994 toyota previa LE 2DR
    I have toyota previa 1994. Van starts fine in the morning but after that causing problems. After that if I stop somewhere turn off engine and then start it takes at least 4 to 6 cranks then to start. When stop at light it loose power then turned off. One more thing I want to mentioned in the morning first start and after some running when it is idle VAN accelerate itself. I have changed spark plugs but still same problem. Please help I am student can't afford to go to autoshop. Thanks.
    kitch428's Avatar
    kitch428 Posts: 1,440, Reputation: 152
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    #2

    Nov 5, 2009, 04:17 PM

    Well, you probably have a very gummed up throttle body, and egr passages, and idle air control valve.(IAC).
    You need to replace the ECT sensor. That's the engine coolant temp sensor which controls you fuel injection volume.
    Passenger seat removal is required to get at it.
    rocket1921's Avatar
    rocket1921 Posts: 5, Reputation: 1
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    #3

    Nov 5, 2009, 04:24 PM

    Can you please tell me where it is exactly under seat and how much it will cost me, please. Thanks
    kitch428's Avatar
    kitch428 Posts: 1,440, Reputation: 152
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    #4

    Nov 5, 2009, 05:24 PM

    It will cost you about 75.00. You must lift the passenger seat out, and bracket for the seat, door sill plate, lift carpet, there are 12 (12mm bolts) that hold the floor pan down under the pass carpet.
    The ECT sensor is forward of the valve cover sitting on top, and has a green connector going to it. You can't miss it.
    It will greatly improve warm up performance, but you sound to have other issues going on also.
    I highly recommend changing out the spark plug wires while you're in there if needed. It's your call/money. GET TOYOTA PARTS!
    rocket1921's Avatar
    rocket1921 Posts: 5, Reputation: 1
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    #5

    Nov 5, 2009, 09:40 PM
    OK I will try and let you know in few days.
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    rocket1921 Posts: 5, Reputation: 1
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    #6

    Nov 5, 2009, 10:32 PM
    Quote Originally Posted by rocket1921 View Post
    ok I will try and let you know in few days.
    If I just unplug the etc sensor will VAN work also I don't want that sensor if van works without it .
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    rocket1921 Posts: 5, Reputation: 1
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    #7

    Nov 6, 2009, 01:25 PM

    If I just unplug the etc sensor will VAN work also I don't want that sensor if van works without it .
    kitch428's Avatar
    kitch428 Posts: 1,440, Reputation: 152
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    #8

    Nov 6, 2009, 04:47 PM

    Remember the ole' saying. Garbage in, garbage out. If the computer sees garbage inputs, then it runs like garbage.
    Computers NEED to "see" these sensors. If they don't, the old Previa will fall flat on it's face!
    Am I right, fellas? Give me a golf clap on that one. Name: clap2.gif Views: 102 Size: 1.7 KB
    To answer your question, and your PM, NO! Do it right, do it once!
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