Rywire Motorsport Electronics

Version 2 of the Rywire K-series Milspec Engine Harness

This version was created to facilitate a more universal chassis, and harness routing preference. This style can be routed more like the OEM k-series engine harness through the center or more to the right on the firewall than it's Version 1 counterpart. This routing method is ideal for our (RHD) Right Hand Drive customers however NOT exclusive to RHD chassis and does work fine on a LHD chassis.

Version 2 is also routed in a way which allows you to get around aggressive exhuast manifolds.

About the Mil-Spec K-Series Engine Harness:

This harness offers Mil-Spec Teflon coated wire. Standard wall ethylene-tetrafluoroehtylene (ETFE) insulation ( also known as Tefzel ) designed for aerospace applications where weight, dimensional tolerance, and mechanical durability are required. This wire exhibits high chemical and radiation resistance. using standard factory wire colors with a maximum heat rating of 200°C . The Teflon coated wire is loomed with The highest quality Raychem DR-25 heat shrink covering, and adhesive lined wire junctions to keep moisture out. Each connector is crimped with pneumatic heads to ensure an OEM crimp every time, then tagged with a yellow identification label for easy installation. All heavy interference circuits are protected and grounded with proper wire covering.

Our Mil-Spec harnesses are 100% quality tested pin to pin, and resistance checked to ensure no voltage fluctuations. These are the best harnesses money can buy. NO CORE is necessary when buying a harness from us!

This harness follows an OEM style configuration meaning that you'll still need a interior Computer adapter for your chassis - see the K-Series Computer Adapter link and add-option below!

Rywire also offers a Firewall mounted Mil-Spec connector that will allow easy engine removal for quick engine changes and customization. It can be added along with the Mil-spec Firewall Plate for a show-quality setup.

These harnesses are warrantied and guaranteed to work, we provide excellent installation phone support and troubleshooting to ensure this reputation for quality, however they are non-refundable.

On the Rywire harnesses for the K20/24 we wire the "TDC" on the intake and the "CPS" on the exhaust side of the head. Our logic is that the exhaust cam position sensor is the ecu trigger reference for timing, and the TDC sensor is the reference for the VTC cam control solenoid position on the intake side of the engine. The connectors are exactly the same, wired the same way, and they are located right next to each other.
If you feel this logic is incorrect, or you simply just want them wired the other way you can easily flip A25 and A26 wires at the ecu and plug them in reverse as we have them listed in the reference below.

Please ask about our custom Mil-Spec wire harness looms that are not listed online.

HARNESS CONNECTOR LIST:

VTEC solenoid VTC Oil pressure sending unit Crank Sensor (CKP)(05-06 K24 style) Coils 1-4 Cam (CPS) Exhaust Side Top Dead Center sensor (TDC) Intake Side Engine Coolant Temp (ECT)(02-04 K20 style) Knock Sensor (KS)(05-06 K24 style) Intake Air Temperature (IAT) Alternator Manifold Air Pressure (MAP)

Throttle Position Sensor (TPS) Idle control motor Electronic speed sensor (VSS) Injectors 1-4 h20 sending unit (for gauge cluster) Reverse Lights Reverse Lockout solenoid Starter signal Computer plugs A and B Power distribution cap Ground 2 Extra Wires