Haltech Nexus Plug-in (Honda Civic EP3 01-05 / Integra DC5 02-04) ECU
The Haltech Nexus Plug-in (Honda Civic EP3 01-05 / Integra DC5 02-04) is a mid-range plug-in engine control unit (ECU) from Haltech. It has 4 injector and 4 ignition outputs, 1 drive-by-wire throttle channel, 1 onboard wideband lambda input and knock control. List price is US$1,695. One seller lists it at US$1,695.
Prices checked . Specs from Haltech's published data.
Key specs
DBW = drive-by-wire throttle channels · λ wideband = onboard wideband lambda (oxygen sensor) inputs · CAN = controller area network buses.
Features
- ✓Drive-by-wire
- ✓Onboard wideband
- ✓Knock control
- ✓Flex fuel
- ✓Traction control
- ✓Launch control
- ✓Boost control
- ✓Gearbox control
- ✓Onboard logging
- ✕Ethernet
- ✓USB
- ✕Built-in display
✓ published · ✕ not offered · ? not published. Some features, like traction control and launch control, mean different things by brand. See the glossary.
Details
- Highlights
- Fits: Honda Civic EP3 2001-2005 (K20A/K20Z), Honda Integra / Acura RSX DC5 2002-2004 (K20A/K20Z). Manual transmissions only. Also supports a K24A swap if the factory EP3 or 02-04 DC5 harness is kept. The factory 4-wire wideband O2 sensor is not supported; fit a Bosch LSU 4.9 or NTK sensor via the auxiliary connector. Bypasses the factory immobiliser and clears the immobiliser dash light. Talks to the Multiplex Control Unit for the dash coolant gauge, battery light and A/C request.
- Part number
- HT-231001
- Software
- ESP (free)
- Logging
- 128MB onboard
- Links
- Product page ↗
- Fits
- Honda Civic · Honda Integra / RSX
- Tuning
- Find a Haltech tuner with a dyno
- Maker
- Haltech: history, software and every model
Where to buy the Nexus Plug-in (Honda Civic EP3 01-05 / Integra DC5 02-04)
1 sellers found
No sellers match. Try another region or turn off “In stock only”.
Prices as shown on each seller's site on , in their own currency, converted at 14 Oct 2026 rates. Shipping, import duty and tax vary. Check with the seller before you buy.
