What I have: Saga 1.3 2007 Manual
Problem:

1. When idle and the A/C is on...the car will start to shudder...so i fugured timing problem la. I gave it to Proton. They said must change this that and everything...Bill will br RM800. I said forget it.

After I collected the car, not only is it still shuddering...now sometime it will AUTO ACCELERATE ! up to 2k RPM...

I took it to my mechanic. RM70. Changed one part(forgot what already) NO PROBLEMS AT ALL.

Proton is full of freaking con men...