Before you update
- You need NSP 1.46.3 or newer.
- If you use the app, you need Haltech Connect 1.6.6 or newer.
As with any firmware update, save a copy of your current map first and keep the laptop on a reliable power source while it writes.
V1.34.1: the fixes
- Spool Up Gear: Number of Operations was missing a default; it now defaults to 1.
- HBO settings: they now appear when the half bridge output is configured as a state output.
- Internal wideband with an LZA-09 sensor: fixes a false "cell error" and a free air calibration that wouldn't complete.
V1.34.0: new features
| Feature | Why it matters |
|---|---|
| Ti6L and GM 6L transmission support | Lets a Nexus run 6L-series automatics through the Ti6L interface |
| Alternate BMW S65 trigger type | Another trigger option for S65 V8 builds |
| Engine Oil Temperature Return sensor | A new input, also selectable as a thermo fan trigger source |
| Transmission input rpm sensor: up to 60 teeth | Raised from 50, for transmissions with finer tone wheels |
| Wideband check in the setup checklist | Flags an unplugged or open-circuit wideband sensor, internal or CAN, even with the engine off |
| Second CAN port on Rebel LS and Rebel JZ | More room for CAN devices and vehicle integration |
V1.34.0: fixes worth knowing
- Table lookups no longer land in the wrong cell on axes set to Discrete Centered with consecutive whole-number values.
- Rebel LS driveshaft rpm sensor now defaults to 40 pulses per revolution, matching the common sensor.
- Transient throttle asynchronous output now works the first time after power-up.
- External CAN device nodes no longer flicker in NSP when connected but not enabled.
- PWM-capable outputs set as switched outputs now show only the pin state.
- NSP warns you if an on-board logging group has channels but is disabled.
- Vehicle speed sensor Input Type is selectable again on the Rebel LS.
- Home % Travel and Worst Home % Travel channels are back.
- Wideband derived channels report errors properly.
- Better injector driver protection against overcurrent.
Prime pulses and asynchronous transient fuel now use only the first injector stage, and the RX-8 plug-in ECU uses less cranking fuel on cold starts. If you run staged injectors, your cranking and cold start may need retuning after this update.
Our take
For most cars this is a low-risk update. The wideband check and the logging-group warning alone are worth having, because both catch setup mistakes that otherwise only show up in a bad log. Check your cranking if you're on staged injection, and confirm tables that use Discrete Centered axes still behave as you expect.
Newer releases are out; see V1.34.3 and V1.35.5. Not sure whether to update? Ask us.
