Farage admitted the morning after the result that the £350m a week to the NHS was a lie. A promise that undoubtedly had considerable impact with the current austerity NHS funding crisis.
The bus was part of the official Vote Leave campaign not Farage’s Leave.EU, so that particular lie is not for Farage to defend. Many others are though.
Ironic that remain was labelled Project Fear as the most direct lies were on the leave side - the £350m that is nowhere near and never has been, and the claims of mass Turkish immigration when Turkey isn't even in the EU stand out as easily memorable.
Remain were less blatant, but gave numerous predictions and estimates of the consequence of leaving. Some were reasonable, from good sources. Others appear to have been back of an envelope escalating wildness like that house prices would fall 10%, then 20, then 25% and more. Often very poor credibility sources but still repeated as though just as credible as the Treasury or BoE etc. Which just gave easy ammunition for the Mail etc.