Alghawi

LEXUS ES300 2001.

WHILE GOING TO MY WORK, AFTER 200 KM AROUND, THE RPM FLUCTUATE BETWEEN 1500-2500 WITH NON STOP, WHEN IN NEUTRAL OR PARK.. I CONTINUE DRAIVIND WITH THE PROBLEM UNTIL REACH MY WORK PLACE AND I STOP IT..

AFTER SOME DAYS WHILE COMING BACK HOME AND AFTER 270 KM I NOTICE THAT THE PROBLEM GONE .. BUT I NOTICE THAT GEAR CHANGING TAKE LONGER TIME ITS LIKE THE ENGINE STRANGULATED,

I DID COMPUTER TEST AND I FOUND THE CODE : P1135, P0100, P0110..
I HAVE CHANGED MASS AIR FLOW SENSOR AND INTAKE AIR TEMPERATURE,

AGAIN WHILE GOING TO MY WORK AND SAME DISTANCE AFTER 200 KM, MY CAR DID THE SAME PROBLEM,, THE RPM FLUCTUATE BETWEEN 1500-2500 WITH NON STOP, WHEN IN NEUTRAL OR PARK,

NOTE: WHILE SHIFTING THE GEAR TO DRIVE THE CAR ALMOST JUMP, THE RPM AROUND 2000 ,, WITHOUT GAS OR PRAKING THE CAR SPEED CAN REACH 60~70 KM/H

..
I APPRECIATE THE HELP..

ES300NZ

vacuum leak. I think you need to visit a mechanic.

Alghawi

thank you ES300NZ,
i have check the hoses around the engine but i can not find damage or loosen hoses,
from which part you think this problem may came..

thanks for the help