Ignitions and Electrical› Wiring Harnesses

Rywire

Rywire 02-04 Honda K-Series MilSpec Eng Harness (Custom Specs in Notes Adapter Req / Drop Ship Only)

$1,050.00

SKU: R00L RY-K2-MILSPEC-CUSTOM

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Advanced — 4+ hours

Overview

This product page serves as a placeholder to showcase Rywire's custom work and encourage customers to contact them with their project goals.
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Part #: RY-K2-MILSPEC-CUSTOM

Vehicle Symptoms
  • Engine cranks but wont start
  • Intermittent stalling while driving
  • Multiple check engine lights
  • No power to sensors or injectors
  • Engine runs rough after swap
Diagnostic Codes
  • P0340 – Cam Pos Snsr A Ckt (B1 or Single Snsr)
  • P0341 – Cam Pos Snsr A Ckt Range/Perf
  • P0101 – Mass or Volume Air Flow Ckt Range/Perf
  • P0122 – TPS/Pedal Pos Snsr A Ckt Low In
  • P0200 – Injector Ckt Malf
  • P0351 – Ign Coil A Primary/Secondary Ckt
  • P0300 – Random or multiple cylinder misfire Det
Relevant Conversations
  • Rywire K‑series harness install guide
  • MIL spec harness vs OEM Honda
  • Check engine light P0340 after K swap
  • Custom wiring harness for K24 turbo build
  • Rywire harness no start issue
  • Where to buy custom engine harness
  • Best engine harness for K20 swap
  • Rywire vs K‑Tuned harness
  • Wiring harness ground issues symptoms
  • Co‑purchase ECU for K swap

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandRywire
Part NumberR00L RY-K2-MILSPEC-CUSTOM

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Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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