Agee with bumblebee it may be a vacuum leak. You said it occurs when you apply the brakes,disconnect the brake booster hose from the intake manifold and plug the fitting in the manifold. Now try the car and see if it still has the same fault. If the fault doesn’t occur you will need to check the bo...

lancerdarryl will try that and get back to you. So if the booster is the issue, a replacement should resolve it? an bumblebee, yea i cleaned it twice, its absolutely spotless. Will try to spray around the manifold and see if the rpm goes up as well. Is there any chance that engine is damaged? Hence ...

Hi folks, :hallo: I've been pulling out my hair trying to solve an issue with no avail and decided to ask for some help as i'm currently stuck. VEHICLE: 2010 CY3A JDM Lancer, Galant Fortis, with a 1.8 [4B10] engine with CVT transmission with all stock parts and tune. Basically the car idles fine all...

checking in here from the caribbean, owner of a JDM Lancer, aka Galant Fortis.
Hoping to get some advice on tuning and on a minor issue, will help out where i can too