Reply to thread

See what others are reading now! Try Forums > Current Activity

Message: <blockquote data-quote="meg_omen" data-source="post: 1109040" data-attributes="member: 6316">bros and sifus... need your help and expertise in this matter... Problem:- Erratic idling.- Engine ‘hesitate’ if rpm below 2500, onward acceleration still responsive.- Idling and ‘hesitation’ worse when a-cond is on.- Fuel consumption increase to RM65 = 440km (previously reach 500km) History:Day 0- Change coolant (Toyota OEM), afterwards running in is okay. Day 1- Starts car, felt the car jerking… bad idling, felt like the spark plugs wet.- Check and clean the plugs, still the same. Cannot continue checking cause need to drive to Melaka. Day 2- Still the same even after driving to Melaka and back.- Check and clean the ‘plug hole’, replace new spark plugs… no changes. Day 3 – 5- Found in the Net, possibilities areo vacuum leakso idling control valveo vacuum sensor- Few days already checking from connector to wiring…if any loosen.- Suddenly, unplug vacuum hose at TB and then plug back… all okay. This hose are from one of the vacuum sensor… circle in red.- Let the engine running for a while, then after switching the ac on, problem starts again. Day 7- Check and clean the valve at the TB (red circle)… no changes.- Change the o-ring for AFPR… no changes.- Change all vacuum hose to silicon (ayam brand)… no changes.   Questions:1- How to know is the ICV is okay?2- What is the vacuum sensor for… red circle and blue circle?3- Where can I get this vacuum sensor (red circle)? Anybody have ‘left-over’ from their conversion, give me the price? The sticker at the sensor shows…DENSOSensor Assy. Vacuum89420-12070100798-25635V4- Any other possibilities? Really confused already…please help? Note:- Spark plug are ‘side-gapped’, including this new change already using 4 sets. Thanks. </blockquote>