C127 Fuel and Boost display issue

[XCL08]

Hello

I am having issues with displaying my fuel pressure & boost pressure in Display Creator

Still waiting for my C127 to arrive, but I thought in the mean time have a go with Display Creator

When in vacuum display is showing 950.5, but when in postive pressure its spot on.

And fuel pressure just isn't being displayed at all

I have display creator connected to i2 and just using everyday log file

i2 is displaying these two channels correctly

The DBC file I am using is "M1 General 0x640 0x650 0x670 Version 4"

Everything else is working that I want to use/see just these two mention above

Cheers

[Stephen Dean]

Hi,

Fuel Pressure and Fuel Pressure Direct are two different channels. Fuel Pressure Direct comes from the Common Rail Direct Injection M1 Packages on the M14x and M18x ECU's. Fuel Pressure is the feed from the fuel tank and Port Injection engines.

The Inlet Manifold Pressure is sent as an Absolute Pressure value, so it doesn't correctly recognise a negative value, the Hex value gives this away in that it is showing 0xFFFF which is the maximum value that the channel can transmit. You will need to build a conversion table that takes the Absolute value and changes it into into a Gauge Pressure value.

[XCL08]

Thanks for the reply

In regards to fuel pressure, I have highlighted the channel in the image attached. It doesn’t look to be reading the data when linked to i2, yet in i2 this is displaying correctly.

In regards to boost pressure, how does one build the table you are talking about?

Many thanks

[Stephen Dean]

Are you able to post the logging and configurations that you are using?

What is the channel name that is displaying in i2? These need to be the same channels names to work correctly.

Using the 2D tables in the Dash Manager, you can generate a table that looks like this, and then transmit the Output Channel into Display Creator.

Boost Pressure.png (77.61 KiB) Viewed 4485 times