Regarding the hard to start issue on saga. I actually have a suspect which is the purge valve. I did some googling about the purge valve and it is found almost in all modern car not just proton. Overseas they call it EVAP (Evaporative Emission Control) system and the purge valve is part of the system. The EVAP system is to trap the fuel vapor in the charcoal canister to avoid the vapor going to the atmosphere.
Our gaga charcoal canister is located beside the fuel tank on the right side if view from the rear of the car. While for Persona it is located inside the engine bay. I look up again to the spare part list for our gaga and the charcoal canister was in the part list.
The purge valve itself is a solenoid valve that have a diaphragm that opens and closes. When the engine is switch off the diaphragm will close up. When engine is warmed up and running the ECU will controls the opening of the diaphragm to allow some fuel vapor from the charcoal canister to be burned by the engine. Initially I didn't know where the purge valve was connected to until that time when I did my fuel system modification. I traced the hose to the charcoal canister beside the fuel tank.
The hard to start problem will occur when the purge valve is stuck open when the engine is off. If the purge valve is totally not functioning the CEL will come up. The car can still start if we keep cranking but after start up the car might idle a bit hard and not stable and goes back to normal.
This is just my idea/Theory after thinking about the problem for a while and looking around the net for answers and info.


On the diaphragm sticking part. It's either we need to clean it once a while or just change the purge valve.
I myself have had once a while hard to start issue especially after I off the engine for a while and restart back. I will try and do some follow up on this and keep you guys updated on this problem and see if I can find a solution to it.
Thanks
The proton PCV will not last forwver and are known issue to kaput.. so best best to change it first.