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Edelbrock 38883 User Manual

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Catalog #3862, 3863, 3878, 3879, 3888, 3962, 3963, 3978, 3979, 3988,
38633, 38783, 38793, 38883, 39623, 39633, 39783, 39793, 39883
Rev. 4/08 - AJ/mc
©2008 Edelbrock Corporation
Brochure #63-0356
Page 2 of 2
A
B
C
CIRCUIT SCHEMATIC
B ( - )
A ( + )
C
OUTPUT
SPRING
RETURN
5K OHMS
± 40%
Figure 2 - Hitachi Linear IAC Motor (Pulse Width Modulated)
•
IAC motor wiring is shown below, compare this information to the instructions provided with the ECU being used, or contact
the ECU manufacturer with this information to determine proper wiring.
Edelbrock Corporation • 2700 California St. • Torrance, CA  90503
Tech Line: 800-416-8628 • E-Mail: Edelbrock@Edelbrock.com
Stepper Coil “A” - High
Stepper Coil “A” - Low
Stepper Coil “B” - Low
Stepper Coil “B” - High
Signal In (PWM Input)
12 Volts In
Figure 1 - GM/Delphi IAC Motor (Stepper Type)
•
IAC motor wiring is shown below, compare this information to the instructions provided with the ECU being used, or contact
the ECU manufacturer with this information to determine proper wiring.
Figure 3 - Throttle Position Sensor (TPS)
•
TPS wiring is shown below, compare this information to the instructions provided with the ECU being used, or contact the ECU
manufacturer with this information to determine proper wiring.
NOTE: Throttle bodies are intended for use in applications in which they will be integrated into a custom fuel injection system. Therefore, due to
varying applications and custom use of these throttle bodies, these instructions are intended only as a guide. You should be familiar with the setup
and wiring of a custom fuel injection system. Wiring diagrams have been provided for information purposes only.