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Home / Tech Center / Wiring Schematics

Wiring Schematics

Manufacturer wiring diagrams, harness pinouts and schematics, straight from the people who built the hardware. Looking for a written guide? See Tech Support Articles. Prefer to watch? Tech Videos.

FuelTech · Haltech · Holley · Holley EFI · MSD · Terminator X

FuelTech

48 documents

FT450, FT500, FT550 and FT600 wiring, plus transmission control diagrams.

Complete Packages — FT500

Complete Packages — FT500LITE

Complete Packages — FT600

Individual Diagrams

Transmission

Haltech

110 documents

Elite and NEXUS ECUs, dashes, sensors, harnesses and connectors.

Info Sheet

Other Docs

User Manual

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Holley

3 documents

Carburetors, fuel pumps, regulators, intake manifolds and Holley EFI hardware.

Holley EFI

30 documents

HP and Dominator ECUs, harnesses, sensors and the Holley EFI ecosystem.

PCS

43 documents

Powertrain Control Solutions transmission controllers, gear select modules and paddle shifters. Customer harness drawings by transmission — GM 4L60 through 4L85, 4T60, 4T65 and 4T80, Ford AODE, 4R70W, 4R100, E40D and 5R110, Chrysler 545RFE and ZF 5HP19.

Terminator X

1 document

Terminator X and X Max engine management for LS, Coyote and Gen III Hemi.