DSM Link Injector Size

[SFRacingGST]

When i right click A/F ratio and click properties, my injector flowrate is set at 450cc/min. Does this mean that my ecu was flashed for 450 injectors, or should this setting stay at 450? I am trying to change my injector size to 850's, however i am confused why it says 450's there, because my ecu was flashed for 550's..

 

[Dream On]

Go to ECU->Fuel... and adjust global and deadtime settings. You can't just put in that you have 850's and it will work magically. That AF properties is just based on your injectors to give you an estimate of your AF ratio. Look on the dsmlink forums for more help or on the website that has instructions/guides for setting your injector size.

 

[elfroggo]

no, it's normal for it to say 450cc as injector size in the A/F ratio display. Just adjust it to the size it should be.

 

[SFRacingGST]

so then all i need to do is change the injector flowrate and the dead time in the a/f props and then change the global and deadtime in the fuel section of the ecu tab to 315 dead time and -47% global to have my ecu run with 850 FIC's?

 

[91eagle_tsi_awd]

so then all i need to do is change the injector flowrate and the dead time in the a/f props and then change the global and deadtime in the fuel section of the ecu tab to 315 dead time and -47% global to have my ecu run with 850 FIC's?

Check the injector table on the dsmlink manual. It also tells you that these numbers are a rough guide to dial in your injectors. You might need to change them slightly if needed.

 

[daren_p]

Yes you are correct in the fact that you compensate for different injector sizes by using the global & deadtime setting in the fuel menu under the ecu header. Those are the recommended values to start at but there are many things that can effect injector flow & they may not be the right settings for your setup. You need to log your Lo & Mid long term fuel trims (LTFT) to know if these settings work for you. All of this is discussed in the user guide which comes on the CD. The Props tab you can click on with air/fuel selected is just to get the air/fuel ratio estimate to line up with the approx value as its a calculated value.