Rywire 2001-2005 Civic K-Series Conversion Harness - K20 Swap With RSX Engine Harness (k-em2)

Rywire k-em2 lets you use a 2002-2004 Acura RSX engine harness in a 2001-2005 Honda Civic for a K-swap. It plugs in at the 20-pin gray connector on the interior end of the engine harness and repositions the wires that differ between the two cars. No harness core is needed.

Why This Civic K-Swap Conversion Harness

The Rywire k-em2 is a K-swap conversion harness that lets a 2002-2004 Acura RSX engine harness run in a 2001-2005 Honda Civic by repositioning the circuits that differ at the 20-pin gray connector.

• Versus re-pinning the RSX harness: This Civic conversion harness repositions the differing circuits for you. Three connections remain: switched 12V and constant 12V at the fuse box, and one white wire into E-plug position 8.
• Versus hunting a Civic-specific harness: This Civic conversion harness lets a 2002-2004 Acura RSX K-series engine harness run in the 2001-2005 Civic, so you do not need a harness made for the Civic.
• No core needed: This Civic conversion harness is built by Rywire without a core, so nothing has to be pulled from the car and shipped before it is made.
• O2 sensor plug included: This Civic conversion harness includes the 4-wire primary O2 sensor plug, so that circuit is not left for you to source and wire.

Best for: A 2001-2005 Honda Civic K-swap using a 2002-2004 Acura RSX engine harness.

Engine Swap Fitment

• Chassis: 2001-2005 Honda Civic
• Engine harness: 2002-2004 Acura RSX K-series

Features

• Plugs into the stock 20-pin gray connector at the interior end of the engine harness
• Repositions the circuits that differ between the RSX and Civic
• Only 3 connections to make yourself
• Includes the 4-wire plug for the primary O2 sensor
• No core to send

Connector List

• 20-pin gray engine harness connector
• 4-wire primary O2 sensor plug
• Switched 12V and constant 12V leads (from the fuse box)
• Pinned lead for the engine computer E-plug

What's Included

• K-series conversion harness
• Installation instructions

Frequently Asked Questions

What do I have to wire myself?

Three connections: a switched 12V lead and a constant 12V lead, both sourced at the fuse box, and a pinned white wire that goes into position 8 of the engine computer E-plug.

Do I need to send a core?

No. Rywire builds it without a core. Email service@tunedbyshawn.com with your engine, chassis and ECU before ordering if you are unsure which configuration you need.

Can I use an RSX engine harness in my 2001-2005 Civic K-swap?

Yes, with the Rywire 2001-2005 Civic K-Series Conversion Harness. It plugs in at the 20-pin gray connector, repositions the circuits that differ between the two cars and leaves three connections to make.

For off-road and competition use only. Not legal for use on pollution-controlled motor vehicles.