Drilling at the project last year fetched low grades, with a best result of a 59m intersection at 0.16% copper.
The IP survey started last week and will cover 2.9sq.km to scope for hidden porphyry copper-gold deposits.
The results would determine whether drill testing was warranted, Goldminex said. Drilling could even start this quarter if there is a favourable outcome.
In July 2011 Goldminex landed a farm-in agreement with Vale, giving the big Brazilian a 51% stake in seven Owen Stanley ranges tenements for spending $US20 million on exploration within four years.
At least $5 million was required to be spent in the first year and Vale chose the Liamu project as its priority.