Two problems related to emission control have been reported for the 1998 Mazda 626. The most recently reported issues are listed below.
Consumer was traveling on highway and engine check light came on dashboard. Mechanic told consumer that oxygen sensor malfunctioned. Dealership was aware of problem.
Check the engine light comes on and goes off repeatedly due to oil spilling into air flow sensor and due to intake manifold gasket leaking. Yh.