1992 Toyota Supra Repair and Maintenance

A guide to problems, costs, maintenance and repair for your 1992 Toyota Supra

1992 Toyota Supra Problems

Updated Expansion Valve to Correct Leaks and Poor Performance

The AC Expansion Valve may develop a very slow leak or allow too much refrigerant flow which reduces cooling. Our technicians tell us that Toyota makes an updated expansion valve to resolve these problems if and when they occur.

Engine Stalling When Warm

At higher mileages (125,000+) the Engine Coolant Temperature Sensor may intermittently stop working, especially when the vehicle is fully warmed up. This can cause the engine to stall unexpectedly.

Throttle Position Sensor Out of Adjustment Due to Wear/Carbon Build-up

The Throttle Position Sensor can get out of adjustment due to wear in the throttle body or due to carbon build up. This will cause the idle timing to advance more than 30 degrees which will cause very high HC and NOx emissions. Conversely, the Throttle Position Sensors can wear out and not properly advance the timing which causes a lack of power and poor fuel economy.

See More Problems (18)