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Technical => Diagnostics => Topic started by: 2002b6guy on January 19, 2017, 08:55:54 PM



Title: 650cc injectors 2002 Audi A4 Quattro 1.8t
Post by: 2002b6guy on January 19, 2017, 08:55:54 PM
Hey guys I am having some problems with tuning these injectors I can get it to idle but I am running really rich. Does anyone have any suggestions? I have changed KRKTE TO .06 and have adjusted tvub. This car is returnless fuel system and I think that's what is causing it. Let me know thanks


Title: Re: 650cc injectors 2002 Audi A4 Quattro 1.8t
Post by: TijnCU on January 20, 2017, 12:05:07 AM
How did you arrive at a krkte value of 0.06?  I bet you are over 100cc's off....


Title: Re: 650cc injectors 2002 Audi A4 Quattro 1.8t
Post by: yxx499 on January 20, 2017, 05:07:19 AM
For correct TVUB , check injectors spreadsheet.

What FPR do you have?
About KRKTE... for 650cc injectors, the KRKTE is  ~ 0.050129 (@3bar)..


Title: Re: 650cc injectors 2002 Audi A4 Quattro 1.8t
Post by: _nameless on January 20, 2017, 12:05:19 PM
For correct TVUB , check injectors spreadsheet.

What FPR do you have?
About KRKTE... for 650cc injectors, the KRKTE is  ~ 0.050129 (@3bar)..
his car is a static 4 bar so even less


Title: Re: 650cc injectors 2002 Audi A4 Quattro 1.8t
Post by: 2002b6guy on January 20, 2017, 04:59:22 PM
My car is 3bar


Title: Re: 650cc injectors 2002 Audi A4 Quattro 1.8t
Post by: 2002b6guy on January 20, 2017, 05:00:02 PM
I don't have a FPR. It's located in my fuel filter


Title: Re: 650cc injectors 2002 Audi A4 Quattro 1.8t
Post by: _nameless on January 20, 2017, 09:44:44 PM
I don't have a FPR. It's located in my fuel filter
Your car is static 4 bar (not pressure on rise) returnless fueling. You may want to actually know what you are tuning before just making calibration changes