You have to especify wich sensor, a cooooomun caor has around 20 different sensors, ( TPS, AIR FLOW METER, Knock sensor, air bags sensors, coolant temperature sensor, etc.) WICH one. HA HA HA HA reddragon
The speed sensor for a 1990 Cadillac Deville is located on the side of the transmission. Look for a 2 wire plug with 18 gauge wire.
How_do_you_reset_a_1990_Cadillac_DeVille_computer_system_after_self-servicing
located on the exhaust manifolds
I believe the O2 sensor heater is a fused circuit, you will need a wiring diagram to tell which one it is.
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The 1990 Cadillac Sedan DeVille is front wheel drive. The 1990 Cadillac Sedan DeVille is front wheel drive. The 1990 Cadillac Sedan DeVille is front wheel drive.
It is at the rear, passenger side, of the throttle body. It is also three prongs. -L