Parts for your 1991 Toyota Hilux surf-Temperature sensors

1991 Toyota Hilux Surf temperature sensors — what they do and how to look after them

Temperature sensors are absolutely fitted to the 1991 Toyota Hilux Surf and they matter a lot. Toyota’s factory service material for these models shows multiple thermistors and senders feeding the engine ECU and instruments — including the engine coolant temperature (ECT) sensor, the dash gauge sender, intake air temperature inside the airflow meter on petrol engines, diesel fuel and coolant temp inputs on 2L-TE models, and an ATF temp sensor on autos (Toyota Factory Service Manual, Engine Control – EFI