The catalytic converter is used on 1978 and later models.
This unit or units (two used in 1981-83), replaces the thermal reactor. It is filled with catalyst to oxidize hydrocarbons and carbon monoxide in the exhaust gases. Two units are used on some late models.
- Check the core for cracks and damages.
- If the idle carbon monoxide and hydrocarbon content exceeds specifications and the ignition timing and idle mixture are correct, the converter must be replaced.