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  1. K

    poor acceleration from rest/stop

    and knock sensor although there was no code for them
  2. K

    poor acceleration from rest/stop

    update.....turned out to be bad MAF sensor.
  3. K

    poor acceleration from rest/stop

    update.....turned out to be bad MAF sensor.
  4. K

    poor acceleration from rest/stop

    thanks all. UPDATE Removing the air filter had neutral effect. Except for increased sound For the fuel pressure, i dont have a pressure gauge and it seems corolla 2009 my model doesn't have the port for attaching the pressure gauge, i checked but couldn't find one. Although i ve replaced with...
  5. K

    poor acceleration from rest/stop

    Thanks, will try the air filter trick. Although STFT , LTFT and Total fuel trims are within normal ranges (<10%). Removing the exhaust wasn't helpful so i have ruled out blocked catalytic converter.
  6. K

    poor acceleration from rest/stop

    my corolla 2010 , 2ZR FE started exhibiting poor /slow acceleration from stop some weeks ago.The slow acceleration makes overtaking difficult. i have changed the fuel pump but it wasn't helpful. No MIL (obd) code on scanning. what are the other possible causes please.
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