Older Mazda dash lights

reggienz, Apr 20, 9:27am
Got an aging 1990 323 which has been brought back into use. The red light on the left side of dash with the muffler symbol on it fluctuates on and off. What is it trying to tell me! Thanks in advance.

gammelvind, Apr 20, 9:31am
Possibly the catalytic converter faulting

motorboy2011, Apr 20, 9:34am
which you may find is due to a faulty sparkplug or lead as the unburnt fuel burn in the cat, it overheats the cat, and on comes the light.