Before you update
- You need NSP v1.47.1 or newer.
- You need Haltech Connect 1.6.8 or newer.
As always, save a copy of your current calibration before flashing, and check your tune and sensor readings after the update before you drive the car hard. If NSP won't connect to download updates, see the NSP updater TLS requirements.
V1.35.5: wideband accuracy
This point release has one change. Calibration accuracy for Bosch LSU wideband sensors is better when the sensor is running in the "always on" mode. It covers both sensors wired to the ECU and those on WB1 and WB2 CAN controllers. If you run your wideband in that mode, this update is worth having. See our wideband O2 article for setup.
V1.35.0: what's new
| Feature | What it means for you |
|---|---|
| Pin flexibility on Rebel and plug-in VCUs | Functions that used to be tied to fixed pins can now be moved to other free pins. The reverse doesn't apply: those fixed pins still only work for the function they were designed for. |
| Intercooler Temperature Differential channel | Appears when you have both the intake air temp and the pre-intercooler air temp sensors enabled. A quick way to see how well the intercooler is working. |
| Automatic injector flow adjustment | A toggle inside each fuel stage. It only becomes available once the number of stages is set under Engine Configuration - Fuel System. |
| Flow Modelling | When turned on, the Flow Rate Reference and Pressure Rate Reference fields become editable (they must be above 0 to produce a valid flow), and the stage's Flow Rate table is disabled. Reset the ECU after enabling it. |
| Cam Control Switched feedback DTCs | With the feedback sensor enabled, the ECU now raises a code when the measured state doesn't agree with what it commanded, which points to a solenoid, wiring or sensor problem. |
| Ignition Lock moved | Its settings now live under Engine Configuration - Trigger System instead of Ignition Tuning. |
| Generic Outputs 1-3 | Their tables can now use a third axis. |
| One-click VSS calibration | With NSP V1.47.0 or newer, one button calibrates every enabled vehicle speed sensor at once. |
| Speedometer (Discrete) | New function for factory clusters that expect a pulse-driven speed signal. |
| Electrical Load voltage input | Lets you measure the car's current draw, and adds an Idle-Up correction that raises idle base offset as load grows. Handy for cars with big fans, pumps or stereos. |
V1.35.0: fixes
We've grouped these by the area of the car they touch.
Engine and fueling
- O2 control could still change fueling during a transient throttle event, when it should have been switched off.
- The Mitsubishi 6G74 wasted spark trigger could cycle through sync states in some conditions.
- External wideband sensors could stay stuck in the engine-stopped state after the engine was cycled.
- Alternator control on some RX-8 plug-in hardware revisions.
- On the Ti6L, the engine control relay is no longer required for operation.
Drive-by-wire
- A delay in DBW throttle position at boot with low Open Rate Damping values.
- DBW could go into an error state if full throttle was applied quickly from idle, or at startup with RPM present.
Transmission and drag features
- Paddle shift requests couldn't shift into or out of neutral when a Neutral Shift Method was in use.
- The trans-brake Bump/Creep table didn't update in creep mode.
- Traction control's Conditional Activation setting now has an error description.
Dashes, CAN and I/O
- The handshake with the Racepak IQ3 dash failed.
- The IO Report created an invalid CAN object for external dash connections.
- Inputs coming from an HBO channel on an external box were read incorrectly.
- False errors were raised on virtual outputs.
- The pre-intercooler intake air temp error code wasn't sent over CAN correctly.
NSP display and diagnostics
- P0178, P0179, P0182 and P0183 were missing from the Configure DTCs window with the flex fuel composition/temperature sensor enabled.
- Hour Meter 0 and 1 and the Service Indicator enablers had the wrong display names in the Sensor menu.
- Password-protected Throttle Calibration settings had an incorrect description.
Should you update?
If you use a wideband in always-on mode, a Racepak IQ3, trans-brake creep, paddle shifting with neutral, or a 6G74, yes. Otherwise it's still a solid release with useful new features, particularly flow modelling and electrical load idle-up. For earlier releases, see V1.34.3 and V1.34.1. If you'd rather we handle the update and check the tune afterward, get in touch.
