Very early in the morning, as i was about to send my kids to school, this happened. There were no loss of power, no terrible judder of the engine. Upon driving, it felt ok, but at times, engine seems to be a little hesitant.
So, went through the day Uber-ing. Later in the afternoon, only had the chance for a check-up, and the result was this:
Apparently, the rail pressure sensor (its behind the engine, with a bunch of other sensors/wires) was broken in 2, and dislodged from its place. the exposed contact point came into contact with the engine (or perhaps any metal for that matter), causing a short circuit that:
1. lighted up the CEL - Drivetrain error
2. reset the time in the car
And since my engine cover is already opened and exposing my engine head, decided to change the vent hose, as it was causing air to leak from the engine as sometimes, there's a high pitched shrieking can be heard upon restarting the engine.
The well-past-its-time vent hose, all wrapped up by the previous owner
Taken out, all brittle
The new vent hose
New vent hose fitted nicely
Total damage this round, excluding GST:
Rail pressure sensor RM 300
Vent hose RM 250
Diagnose & labour RM 200