Coreference processing of Control constructions and their pronoun-containing counterparts can be studied experimentally using priming or interference paradigms. We replicate findings in a priming study on non-finite Control constructions in Norwegian (Larsen & Johansson, 2020) and contrast them with their finite counterparts using interference effects in a grammatical maze (G-maze) design. We asked participants to read sentences word-by-word and to select the grammatically correct continuation from two options. When the ungrammatical option was a potential antecedent from within the sentence, we predicted interference, i.e., longer reaction times compared to an unrelated baseline. We observed a trend towards significant interference effects when a participant was presented with either of the potential noun phrase (NP) antecedents of PRO in competition with the infinitive marker (test position zero) during the processing of a Control sentence. This indicates reactivation of potential antecedents at the infinitive marker, and a reactivation position (PRO) near or at the infinitive marker. We also observed significant differences between Control constructions and their pronoun counterparts. A significant interference effect was recorded for Subject Pronoun constructions when either potential NP antecedent of the pronoun was presented in competition with the pronoun itself. A similar trend was recorded for Object Pronoun sentences.