Chris Huhne and his former wife Vicky Pryce were both charged last year with perverting the course of justice over the allegation, said to relate to a speeding offence in 2003.
Pryce previously pleaded not guilty on the grounds of marital coercion and Huhne today also entered a not guilty plea to the charge.
Former Energy Secretary Huhne, 58, from Dutton Lane, Eastleigh, Hants, stood down from the Cabinet following the charge last year, but remained the Lib Dem MP for Eastleigh.
More top news
Two suicide bombs in a crowded market place in the north-western city of Parachinar have left 40 people dead and a further 12 injured.
Expect cloudy conditions with some light rain on Saturday morning before brighter spells develop later in the southeast.
More than 140 people are missing and feared to have been buried under debris following a landslide in China.