What happens when a EGR time delay switch goes bad in a 1992 Toyota pickup?

When the EGR (Exhaust Gas Recirculation) time delay switch in a 1992 Toyota pickup goes bad, it can lead to improper functioning of the EGR system. This may result in increased emissions, poor engine performance, and reduced fuel efficiency due to the EGR system not activating correctly. Additionally, the vehicle may experience issues such as rough idling or stalling. It’s advisable to replace the faulty switch to ensure optimal engine operation and compliance with emissions standards.