As mentioned previously, you still have PR status. You don't lose it until the Canadian government makes a determination to that effect.
But you are certainly at risk of losing it because it sounds like you have not really spent any time in Canada since your initial landing, therefore falling short of the "2 out of 5 years" requirement (residency obligation).
Again, this has no effect until an officer determines it. It usually happens in the following situations:
1) When applying for a travel document from outside Canada
2) When applying for a new PR card
3) When entering Canada
If you don't meet the residency obligation and you attempt either 1) or 2), it is almost guaranteed your non-compliance will be found out. Unless you have humanitarian or compassionate reasons for your absence (your case does not sound like you do), proceedings will be started that will result in loss of your PR status.
Enforcement at the border is less consistent for the time being. As long as you have a valid, non-expired PR card, there is a chance you may not be investigated too closely when you return to Canada. If you get in without a report being issued, you would have to remain in Canada for at least 730 days to come back into compliance and be able to travel again without risk of being reported, or to apply for a new PR card.
Things get trickier once your PR card has expired, and you are still outside the country. You would no longer be able to travel to Canada by air or any other commercial carrier, but you could travel to a land border by private car. Obviously, with an expired PR card, the risk of being faced with questions at the border goes up significantly. That being said, forum members have reported being waved through even in that situation.
But this all may be a moot point if you have no intentions of returning to Canada to live there. The longer you stay away, the more likely it becomes that you will be reported, and the less leniency you will face at the border.
