OBD0 DPFI to OBD1 ECU Jumper Harness - Manual Transmission

HA Motorsports ECU jumper/conversion harness for installing an OBD1 ECU into OBD0 Dual Point Fuel Injection (DPFI) chassis. Using this harness you can convert directly from OBD0 dpfi to OBD1 WITHOUT first doing an MPFI wiring conversion. All HA Motorsports ECU jumper harnesses are constructed using cross-linked automotive TXL wire that exceeds OEM specifications and is extremely durable. Uses all OEM ECU connectors for OE-like fitment.  Designed and built right here at our facility in the USA!

For use on these vehicles:

• 88-91 Honda Civic DX/LX with manual transmission
• 88-91 Honda CRX DX/STD with manual transmission

Requires you to use your original 88-91 DPFI engine harness and modify it as needed to fit. The included pigtails provide your new injector wiring along with wiring for other components (VTEC solenoid, VTEC pressure switch, knock sensor, 4-wire O2 sensor, IAB solenoid, etc). Simply plug one end of the harness into your new OBD1 ECU, the other end into your stock OBD0 ECU connectors, then run the pigtail wires to the additional components.

NOTE: You MUST use an OBD1 or OBD2 distributor that fits onto your engine as OBD1 ECU's are not compatible with an OBD0 distributor's signals. All HA Motorsports ECU's, products, and services include a One Full-Year VIP Warranty

OBD0 DPFI to OBD1 ECU Jumper Harness Installation Instructions

All products sold by HA Motorsports include a no hassle 1 year VIP warranty against ANY manufacturing defects. We are proud to honor this warranty as we feel 100% confident in our products to perform flawlessly as intended and your complete satisfaction. Upon the occasion that a product of ours fails at any time within 1 year of purchase due to any manufacturing defects, your product will need to be returned to us for inspection to determine the cause of the failure and inspection for repair or replacement. Your 100% satisfaction is our goal and if you are not completely happy we'd like every chance to make it right.

What is covered under warranty:

• ECU board failure due to faulty ECU components (ie: injector driver fails, CPU processor fails, specific ECU circuit does not operate as intended, poor soldering, etc.)
• ECU component/hardware failure due to faulty manufacturing.
• Wire harness failure due to incorrect construction.
• Product failure due to a manufacturing or assembly problem.
• Outside company products. We will handle the hassle of shipping your product back to the manufacturer for warranty processing. Let us replace your product for you and we will deal with the warranty process with the manufacturer later.

What is NOT covered under warranty:

• ECU failure due to improper vehicle wiring (ie: ECU component fries due to sensors being connected incorrectly, low resistance fuel injectors being used without a resistor box, ROM chip being installed backwards by user, customer attempts to modify ECU in ANY way other than intended, etc.)
• Product being used in a way other than the intended use.
• Rear "warranty void if removed" sticker on ECU has been removed or altered.
• Failed, shorted, or corroded ECU board due to water damage.
• Any and all outside labor charges associated with removing and replacing product or diagnosing product failure.
• Wire harness failure due to improper use or rough handling.
• Cosmetic variances from manufacturing (ie: ECU lid has variation in powder coat texture or color within acceptable limits, wire harness color variations within acceptable limits).

How the warranty process works:

If you've determined that a product has failed due to a manufacturing defect, please contact us via email at sales@hamotorsports.com to review the symptoms you are experiencing to allow us to assist you with troubleshooting before shipping your product back to us for warranty. Many times, we can help you with the problem and determine what is being done incorrectly or how to configure the product properly to restore correct operation. If after we discuss the issues you are experiencing we determine that your product may need warranty replacement or inspection we will instruct you how to return it to us. Please note that we test EVERY ECU, EVERY ECU package, and wire harness components on our state-of-the-art testing equipment for complete proper operation before packaging and shipping to customers. PLEASE verify ALL wiring, installation, software settings, etc. are correct BEFORE contacting us for warranty repair/replacement.