Rywire B-Series OBD2 Tuck Budget Engine Harness

MADE IN THE U.S.A.

This harness uses Mil-Spec Teflon coated wire with a maximum heat rating of 200°C.

Our D-series and B-series compatible wire-tuck engine harness is nearly identical to our Mil-spec engine harness line with the primary difference being, the single black wire color and expandable loom.

There are quite a few options available. Please look through them carefully to make sure you get the right parts!


Vehicle Type: Select your vehicles chassis type.
This tells us what interior "Chassis Adapter" to use for your setup.

Injector Adapters: The Injector adapters dropdown menu has all the adapters you would need if you're selecting the OBD1 or OBD2 connectors but require a different Injector type only. (Look at this list if you don't know which type you have.)

Alternator Adapter: We currently only have OBD0/1 to OBD2 adapters (Not 2->1), so if you have an OBD1 alternator: You will want to order the OBD1 Version of this harness and be sure to select the adapters for the OBD2 injectors and distributor if necessary.
This can be confusing, feel free to call us.

Charge Harness:
• The "non-separated charge harness" option will add the Starter & Alternator leads to the fuse box. If you are not running your own Alternator power lead, you should add this. (+$45)
• If you are relocating your battery, with our Starter Fuse box lead, all you need to do is run a heavy gauge wire to the starter from your 12v+ battery terminal in order to get 12v+ power to your fuse box.

This engine harnesses uses OBD1 (92-95) computer connectors

Our Budget D-series and B-series compatible wire-tuck engine harness is nearly identical to our Mil-spec engine harness line with the primary difference being, the single black wire color and expandable loom used. There are quite a few options available. Please look through them carefully to make sure you get the right parts! All connectors and materials are new. Each connector is crimped with pneumatic heads to ensure an OEM crimp every time, then tagged with a white identification label for easy installation. All heavy interference circuits are protected and grounded with proper wire covering. Our engine harnesses are 100% quality tested pin to pin; And resistance checked to ensure no voltage fluctuations. All Rywire engine harnesses are made with OBD1 (92-95) Computer Connectors. A computers adapter must be used for OBD2a or OBD2b computer's if necessary. Our harness does not support USDM OBD2 computer's. Aftermarket computer's using OBD2 plugs & Non-US OBD2 computers are compatible! (except for H22 and GSR stock computers). Each harness will come with a custom back side sub-harness that will be proprietary to the chassis you choose on the drop down menu. This way if you ever change chassis you will only need a new sub-harness, not a whole new wire loom! These harnesses are warrantied and guaranteed to work, however they are non-refundable. Because the back-side (interior/shock tower connection) separates from the main harness, the engine harness can be used on multiple chassis provided the engine itself uses the same components. We sell the back-side harness seperately only over the phone for previous engine harness customers. HARNESS CONNECTOR LIST: • Oil Pressure Sending Unit • Knock Sensor • Intake Air Temperature (Intake Manifold Style) • Oxygen Sensor (Primary 4 Wire) • OBD2 Alternator Plug type • 2 Extra Wires • OBD2 Injectors 1-4 • MAP Sensor • TPS (Throttle position) • Idle Control Motor • Electronic Speed Sensor • Ground • Fan Switch • OBD2 10-pin Distributor plug • h20 Sending Unit (for Gauge Cluster) • Reverse Lights • Engine Coolant Temp • Starter Signal • VTEC Solenoid • OBD1 Computer Plugs A,B,D • Power Distribution Cap This instruction is for an 88-91 CRX/Civic installing a Budget Tucked or Mil-spec version of the B-series, D-series, F-series & H-series Rywire engine harness "Chassis Adapter". [ RIGHT CLICK AND "SAVE AS" TO SAVE PDF FILE ] This instruction is for an 90-91 Integra DA installing a Budget Tucked or Mil-spec version of the B-series, D-series, F-series & H-series Rywire engine harness "CHASSIS ADAPTERS" specific to your vehicle type; But matching a wide range of our engine harnesses. [ RIGHT CLICK AND "SAVE AS" TO SAVE PDF FILE ] This instruction is for an 92-95 Civic & 92-95 Integra installing a Budget Tucked or Mil-spec version of the B-series, D-series, F-series & H-series Rywire engine harness “CHASSIS ADAPTERS” specific to your vehicle type. [ RIGHT CLICK AND "SAVE AS" TO SAVE PDF FILE ] This instruction is for an OBD2a vehicle installing a Budget Tucked or Mil-spec version of the B-series, D-series, F-series & H-series Rywire engine harness “CHASSIS ADAPTERS” specific to your vehicle type; But matching a wide range of our engine harnesses. Note: On OBD2a Civic’s our adapter is plug and play, this isn’t needed. [ RIGHT CLICK AND "SAVE AS" TO SAVE PDF FILE ] This instruction is for an OBD2b vehicle installing a Budget Tucked or Mil-spec version of the B-series, D-series, F-series & H-series Rywire engine harness “CHASSIS ADAPTERS” specific to your vehicle type; But matching a wide range of our engine harnesses. [ RIGHT CLICK AND "SAVE AS" TO SAVE PDF FILE ] How to order Rywire Engine harness Rywire - Injector Identification Video