2006 Proton Other Repair Question
Have you tried adjusting the idling speed?
Did you check for vacuum leakages?
The ECU controls almost everything connected to engine operations and performance but it acts according to signals from the various sensors.
yap.but the idling still like that.i have check every hose.just shut one end and blow the hose. can manifold lead cause it?can i apply gasket glue to the manifold?
If the manifold is leaking, the idling speed would definitely increase. so wou clogged coolant hoses to the IAC (throttle body)
Use carb spray to detect leaks with engine running.
Sealant is not recommended but ou can use it if you think it is going to work.
i will tried to do it and get back to you if any change.
If the replacement throttle body is a used unit, I would not discount the possibility of it being faulty. Used units tends to get stuck when they are kept for prolonged periods.
It is a new unit.My mechanic try to swap it to verify the problem.After that we noticed that idling stable but at 1500rpm.It is ok if i just blown out the hose and close one end to check for leakage?any other way?
Yes, you can do that but not too high pressure.
Does unplugging the IAC wire connector results in any changes in the idkling rpm?
Just went to c other mechanic today. He tried to take out TB solenoid connecto (it is this is IAC?) but nothing happen.so he ask me went to Proton SC to reset back all setting. He claim every time change the solenoid must retune setting.So i can just went to SC on monday and see how the result.
It is not necessary to reset the IAC. Disconnect the battery and wait 10 seconds or more before reconnecting.
Start engine with all accessories turned off and allow to run until the radiator fan comes. turn on A/C and run for another five minutes and retest.
The PCM will self relearn.