The car has had a service but the problem still persists.
---The symptoms---

1. Rough idling at rest. Rev pin would fluctuate 100-200 RPM. After service that is no longer an issue but the even though the pin is not fluctuating you can feel the engine isn't smooth.

2. When driving doing 2500+ RPM and then putting in the clutch and no longer on the accelerator/gas, the pin as per usual goes down but at times it doesn't recover fast enough, goes below 500 RPM and cuts out. 2.1* Engine doesn't cut out on idle, only from a high RPM to the "clutch in" + "no gas".

3. Before the service car would almost stutter when not putting the peddle down/full gas, more so while driving to maintain a constant speed. 3.1* Engine stutter when you not putting on full gas/pedal down on the accelerator when trying to maintain speed, at low or high RPM when driving (more of an issue at lower RPM). At rest/stationary, doing this isn't an issue. 3.2* Loss of power / delay for 1/2 to 1 sec when putting down the accelerator/full gas. 3.3 * Points 3-3.2* are still an issue, just not as bad after the service. (still an underlining issue)


--other notes--
1. Turning the aircon, lights, radio doesn't affect these problems.