22re runs poorly - sometimes

Discussion in 'Toyota Truck Forum' started by Tom Thomson, Mar 7, 2015.

  1. Tom Thomson

    Tom Thomson Member

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    My 90 pickup alternates between no power and good power. Starts easy, does not miss and "seems" to use lots of gas. If I pull out onto the road and nail it, it will stagger along for several seconds then clean up and pull hard. It never does miss or backfire and has no hesitation on accel. Air flow sensor is clean and free. What else could cause an intermittent problem?
    Thanks tommyt
     
  2. MrMarty51

    MrMarty51 Full Member

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    A good tune up may be in order.
    Could be a number of things, possibly O2 sensor, or, TPS.
     
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  3. chevychase

    chevychase Semi-Admin
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    Yup sounds like it is flooding..might be 02 sensor..or coolant temp sensor. You getting a check engine light?
     
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  4. Tom Thomson

    Tom Thomson Member

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    No "check eng" light. It's burnt out and that makes it tough for most analysers to read. I have found a guy who has a Snap-On "brick". I'm told this is the only thing able to read the code.
    tommyt
     
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  5. MrMarty51

    MrMarty51 Full Member

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    replace the bulb then, try, with a bent to fit paper clip, to jumper the A and the B terminals on the plug, under the steering wheel ? I do not think that the burned out bulb will keep from storing the codes, just from reading them.
    if the burned bulb kept the ECM from storing the codes then, after changing the bulb, take the unit for a test drive and see what codes it comes up with.
    The SES light should come on, when the key is turned to the "run" position. If not then, the bulb is fried or, the ground to the ECM from the bulb is broken or, the ecm has a burned out circuit to the bulb.
     
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  6. Tom Thomson

    Tom Thomson Member

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    it's the tps
     
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  7. MrMarty51

    MrMarty51 Full Member

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    How did You come up with that, through the ECM ?
    Good to know that You did find what was wrong with it.
     
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  8. Tom Thomson

    Tom Thomson Member

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    By pulling the tps connector. It cleaned up and ran fine except a slight accel hesitation when cold. Starts good hot or cold. I'm trying to think of a reason to spend $47 for a new one but so far, no luck.
    tommyt
     
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  9. chevychase

    chevychase Semi-Admin
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    I would try the tps. What your doing your putting the truck in limp mode..computer out of the pic when you disconnect the tps .
    Why it runs a little better. Go to youtube how to adjust,or check the tps ...type in testing a toyota 22re tps
     
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