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What would cause hesitation in a 1991 GEO Storm in which the manifold oxygen sensor have been replaced?
Wiki User
∙ 17y ago
TRY REPLACING THE FULE FILTER.YOU ALSO COULD HAVE CLOGED FLUE INJECTORS TRY SOME INJECTOR CLEANER .OR YOUR LOCAL SHOP CAN HAVE THEM BLOWN CLEAN Check the wire that goes to the O2 sensor, it easily comes disconencted in the little plug that clips onto the radiator next to the PS pump. If the above answers don't work, try cleaning or replacing the idle regulator (it can get a lot of carbon buildup). It's on the throttle body where the air intake links up and just behind the throttle cable. Held on by two star bolts. -Jegoyet
Wiki User
∙ 17y ago
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