One problem related to catalytic convertor has been reported for the 2000 Mitsubishi Galant. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2000 Mitsubishi Galant based on all problems reported for the 2000 Galant.
Contact stated the computer sensors failed. This could affect the catalytic converter and cause air pollution. Did not think the public was made aware of the recalls. Two sensors failed asked Mitsubishi to fix them, and they refused because there was no recall. They were only guaranteed for 3 three years or 36,000 miles.