SR20det Elite 1500 ECU S14 & S15 Silvia
The Haltech Plug N Play harness for the S14 and S15 SR20det makes upgrading the factory ECU in your Nissan Silvia an easy plug and play tuning experience. Simply remove your factory ECU, plug in the Haltech adapter harness along with your Elite 1000 or Elite 1500 ECU, upload a custom Brewed Base map, sync your ignition timing and start taking data logs. We have been using and developing these plug n play SR20 Elite 1500 ecu packages for many years and stand by them with both on site and remote E-tune support for all types of Motorsports.
Haltech S14 & S15 PnP Harness Features:
- Injection molded plastic plug ‘n’ play adaptor harness
- M14 x 1.5 air temp sensor with matching plug and pins
- auxiliary I/O 16 Pin Tyco plug and pins.
Not sure what ECU is best for your SR20det build? Contact us any time by phone or email, we are here to support your project and happy to answer any questions you may have. With so many great ECU options to choose from we are here to ensure you get exactly what you need to get what you want out of your build.
Recommended Aftermarket sensors to be used with Haltech Elite ECU’s:
These are the basic engine related sensors we highly recommend using when upgrading to a Haltech Elite ECU. Adding these sensor to the engine/ECU allow us to utilize many of the Motorsports friendly features and functions built into the haltech ECU. This means your engine can be set up and tuned for more reliable power than ever before with multiple built in engine protection strategies.
- MAP sensor (Manifold absolute pressure sensor)
- Fuel pressure sensor
- Oil pressure sensor (same sensor used for fuel pressure)
- Wideband AFR controller + sensor
- Wideband knock sensor kit with Coax shielded harness
- 4 Port Electric boost solenoid
We have been supplying and tuning this exact ECU package with great success since the release of the Elite series ECU. If you want your SR20det to make reliable power for years to come with all the Motorsports features and engine protection strategies the the S14/S15 Elite 1500 plug and play ECU is the perfect choice.
If you have any questions about choosing the correct harness or ECU please don’t hesitate to send us an email or give us a call. Our team is always happy to ensure you get exactly the parts you need to make your SR20det run better than ever.

Pre-Tune Spark Plug Change
Before tuning your SR20 on your new Haltech elite 1500 ecu we always recommend changing your spark plugs to ensure the engine is running at peak efficiency. The last thing you want during a tune is to to be chasing down a misfire caused by a less than $5 spark plug. Our partners at FFrides not only offer the full line of NGK spark plugs they have also written this easy to follow guide to help ensure you choose the perfect spark plugs for your SR project: SR20det Spark Plugs
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