[mwebb]

Originally Posted by daring4

In a related question can you apply resistors to the air intake temp sensor to decrease fuel use in normal driving? Sorta like lean burn for OBD1?

NO
if you DECREASE voltage by DECREASING resistance the ECM will repond by
RETARDING ignition timing

which will REDUCE FE and INCREASE emissions.

these are negative temperature coefficient sensors
High resistance and high voltage = cold
low resistance and low voltage = hot