On the downside 179.15 is acting as short term support and any break below will drag the pair further down till 178/177.25.
The pair’s short term resistance is around 180.20 and any indicative break above would extend gains till 181.05/181.80.
Indicators (4 Hour chart)
(50) - Sell
(14) - Sell
Recommendation: Sell GBP/JPY around 179.30, SL 180.20, Targets 178.20/177.30.