P0510 MAZDA Closed Throttle Position Switch

Possible causes

– Throttle Position Switch (TPS) Adjustment
– Faulty Throttle Position Switch (TPS)
– Throttle Position Switch (TPS) harness open or shorted
– Throttle Position Switch (TPS) circuit poor electrical connection

Symptoms

– Engine Light ON (or Service Engine Soon Warning Light)
– Engine idle problems
– Possible hard to start
– Possible shifting problems