Talk Morgan Forums Morgan Sports Cars Morgan Three Wheeler & Super 3 Ugh...check engine light is on

..JSHIFFER2...you mention a crack in the muffler will cause an incorrect exhaust back pressure which then cannot be compensated by the electronics & the engine light may come on.A lot of M3W owners have removed the cats & baffles from their exhaust systems.As a result has anyone had the light come on,& any corresponding uneveness in the running of the engine??