Scoupe L4-1468cc 1.5L SOHC (8 VALVE) (1991)
Idle Speed Motor Position Sensor: Specifications
Air Flow Sensor
Output voltage (v) At Engine speed (rpm)
2.7-3.2v.................................................................................................................................................................................................. 700 rpm (Idle)
2.7-3.2v......................................................................................................................................................................................................... 3,000 rpm
Barometric Pressure Sensor
Ambient pressure (ignition on, engine off)............................................................................................................................................. Approx. 4.00v
Vacuum 16 in.Hg................................................................................................................................................................................... Approx. 1.84v
Vacuum 24 in.Hg................................................................................................................................................................................... Approx. 0.79v
Engine Coolant Temperature Sensor
Sensor Resistance At Water Temperature
5.9 Kohm............................................................................................................................................................................................................... 32° F
2.5 Kohm............................................................................................................................................................................................................... 68° F
1.1 Kohm............................................................................................................................................................................................................. 104° F
0.3 Kohm............................................................................................................................................................................................................. 176° F
Crank Angle Sensor
Terminal 2 Output (Powered, Cranking Engine).............................................................................................................. 0.2-1.2v (needle fluctuates)
EGR Control Solenoid Valve
Resistance @ 68°F....................................................................................................................................................................................... 38-44 ohm
EGR Temperature Sensor
Sensor Resistance At Water Temperature
60-83 Kohm........................................................................................................................................................................................................ 122° F
11-14 Kohm........................................................................................................................................................................................................ 212° F
Ignition Timing
Base timing (at curb idle)........................................................................................................................................................................ 5° ± 2° BTDC
Idle timing.................................................................................................................................................................................................... 10° BTDC
Injectors
Resistance @ 68°F....................................................................................................................................................................................... 13-16 ohm
Air Temperature Sensor (Intake)
Sensor Resistance At Ambient Temperature
6.0 Kohm............................................................................................................................................................................................................... 32° F
2.7 Kohm............................................................................................................................................................................................................... 68° F
0.4 Kohm............................................................................................................................................................................................................. 176° F
ISC Motor Coil
Resistance @ 68°F......................................................................................................................................................................................... 5-36 ohm
Motor Position Sensor
Terminal 4 Output (Powered Cranking Engine)...............................................................................................................................................1 .8-2.5v
Resistance
ISC Motor Unpowered.................................................................................................................................................................................. 4-7 Kohm
ISC Motor Powered............................................................................................................................... Approx. 0.5 Kohm increasing to 4-6 Kohm
Purge Control Solenoid Valve
Resistance @ 68°F....................................................................................................................................................................................... 38-44 ohm
TDC Sensor (#1 cyl)
Terminal 3 Output (Powered, Cranking Engine).............................................................................................................................................. 1.8-2.5v
Throttle Position Sensor
TPS Output @ curb idle................................................................................................................................................................................ 0.48-0.52v
Resistance......................................................................................................................... Approx 0.5 Kohm smoothly increasing to 3.5-6.5 Kohm