Euro's rebound from 1.3166 (yesterday's low) in tandem with the rally in cable suggests further choppy trading above this week's low at 1.3113 is in store and another corrective rise to 1.3343 cannot be ruled out, however, break of this resistance is needed for a stronger retracement of recent decline from 1.3739 to 1.3380.  
On the downside, only a breach of support at 1.3166 would indicate aforesaid fall has resumed instead, bring re-test of 1.3113.