To adjust the idle speed control on a Cadillac DeVille with a new part, first ensure that the engine is at normal operating temperature. Disconnect the negative battery cable for a few minutes to reset the engine control module (ECM). Reconnect the battery, then start the engine and allow it to idle without any load while monitoring the idle speed. If necessary, use a scan tool to check and adjust the idle speed per manufacturer specifications, or manually adjust the idle air control (IAC) if applicable.
To adjust the idle speed control motor on a 1993 Cadillac DeVille, first ensure the engine is at operating temperature. Disconnect the electrical connector from the idle air control (IAC) motor, then turn the ignition key to the "on" position without starting the engine. Use a multimeter to check the resistance of the IAC motor; if it’s out of spec, replace it. After installation, clear any diagnostic trouble codes and allow the vehicle to relearn the idle settings by driving it normally.
idle speed control motor circuit fault code
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.
speed sensor
112mph by a fuel cut off
Speed is computer controlled and there is no governor that you can remove.
Speed is computer controlled and there is no governor that you can remove.
no dumb$#@
It is related to a ride control problem. The cars computer is going to limit your speed to 90 mph due to a malfunction in the ride control system.
dirt in the speed snsor bad speedo head in the dash
the four wheel bearing/hubs are speed sensors for the abs system.
You wont like it, but it is located in transmission. Transmission has to be lowered or removed to access.