We have had a few requests from the N54 community to provide information on "how to" interface
with the JB4 tuner. After some research we have some up with following working environments:
1. JB4 requires a full flow signal of 0-2V to cover the 0-2000cc/min range
2. The HFS-4 will output 0.25V to 2.3V signal to match JB4's requirement.
3. Finer failsafe trigger details has to be configured via the JB4 software.
4. The sole failsafe responsibilities are now rested upon the JB4.
5. We can provide additional failsafe soultions by the HFS-4 if requested.
6. Since the HFS-4 provides very fast response to load changes from cruise to WOT,
ensure the JB4's failsafe algorithm is equipped to deal with this working environment.
7. Please post here for extra support for seamless HFS-4 to JB4 integration.
