Saturday, June 15, 2024 4:18:41 PM

Fuel display

8 months ago
#261503 Quote
I have never been able to show fuel levels or exhaust temp. I have a 2010 Cummins and have just updated the firmware to 4.1, my coach fuel gauge has a digital readout in the menus, so the info must be available somehow. Same thing for exhaust temp?? Never been able to get Bluefire to display it on screen. I did find exhaust temp in a digital format somewhere on a Bluefire page?? But never displayed on my dash?  Everything seems to be working better with 4.1 and I am not disconnecting anymore. Would be nice if I could figure out fuel and exhaust temp stuff though. Any settings I might be missing??
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8 months ago
#261509 Quote
I am having the exact same issue also with a Cummins…
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7 months ago
#261516 Quote
Dave/Nick:  Sounds like you both have coaches with Cummins diesels.. I've come across info from others on other forums explaining that Cummins engines (their 'ECU') does not monitor or log exhaust temps  - only air intake temps. The J1939 data bus and protocol that is used on the coach to allow the various eng, trans., etc ECU's to communicate does allow for exhaust temp data to be input/sent - but the Cummins engine ECU does not send that data as it not tracked /monitored by the Cummins ECU. Therefore the 9-pin connector that the BF module receives the multiplexed data from the different ECUs would not be able to provide that to the BF module/device. The same is in essence true for the fuel gauge info - the signal from the sender is likely sent directly from the fuel tank sender to the dash instrumentation in the coach - therefore is not included in the J1939 bus/data being sent between the ECU modules ecosystem/data and the vehicle  - therefore that does not allow BF to access that data via the 9-pin diagnostic port/connector in the coach and therefore can't be displayed directly by BF. Hope this helps... Greg A
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7 months ago
#261517 Quote
Hi Greg, appreciate the response.  I discovered that my fuel gauge within the app does work perfectly when I am recording a trip. That works for me.
Thank you. -Nick
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7 months ago
#261518 Quote
Nick:  great. Just curious (not sure what coach./engine combo you have there) - are you using the BF "Fuel Fill Up" button feature to indicate when the fuel tank is full on the BF fuel gauge? The ECU on the Cummins engines do track 'consumption rate' of fuel through the engine - so that in combination with the referenced dash button feature allows the BF fuel gauge to 'track' fuel level over time indirectly. Thx.
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