Product images and videos 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.
Ignitions and Electrical› Wiring Harnesses
Rywire
Rywire Honda B/D-Series Mil-Spec Engine Harness w/Chassis Specific Adapter
SKU: R00L RY-B1-MILSPEC-EA-EARLY
Moderate — 2–4 hours
Overview
Show original supplier description
Part #: RY-B1-MILSPEC-EA-EARLY
Vehicle Symptoms
- Intermittent stalling or no-start condition
- Check engine light with multiple random codes
- Engine misfires or runs rough at various RPMs
- Visible damaged or melted wiring near connectors
- Sensor failures across multiple systems (cam, crank, O2)
Diagnostic Codes
- P0340 – Cam Position Sensor A Circuit (Bank 1 or Single Sensor)
- P0351 – Ignition Coil A Primary/Secondary Circuit
- P0200 – Injector Circuit Malfunction
- P0135 – O2 Sensor Heater Circuit Malfunction (Bank 1 Sensor 1)
Relevant Conversations
- B series engine swap wiring harness recommendations
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- Burnt engine harness repair vs replacement cost
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- Rywire vs OEM harness for turbo setup
- Honda D series wiring harness upgrade failure
- Engine harness troubleshooting for random misfire
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
| Brand | Rywire |
| Part Number | R00L RY-B1-MILSPEC-EA-EARLY |
Videos
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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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