Fuel oscillation while tuning
Hey guys.
I got my turbo setup half installed, currently waiting on charge piping and intercooler. While tuning the idle and trying to get my VE table back in line with autotune, I have very bad fuel oscillation while under higher loads. The engine runs rough. I expect it is a misfire but wanted to know our opinions on the matter.
My car is running basically straight off the TB with a filter on it. . I resized the injectors in the tune as the stock NB injectors are 265cc @ 3 bar, what I had it set initially to. The NBs fuel pressure is 4 bar though, as such I rescaled the injectors to 306cc in the tune. Should I have done that? It seems to idle but runs very poorly. In addition, My timing offset, 2 degrees before I installed the setup, is now 25 degrees. Should that be considered normal? The timing marks match the marks on the lower timing cover
msq and mlg files attached
I got my turbo setup half installed, currently waiting on charge piping and intercooler. While tuning the idle and trying to get my VE table back in line with autotune, I have very bad fuel oscillation while under higher loads. The engine runs rough. I expect it is a misfire but wanted to know our opinions on the matter.
My car is running basically straight off the TB with a filter on it. . I resized the injectors in the tune as the stock NB injectors are 265cc @ 3 bar, what I had it set initially to. The NBs fuel pressure is 4 bar though, as such I rescaled the injectors to 306cc in the tune. Should I have done that? It seems to idle but runs very poorly. In addition, My timing offset, 2 degrees before I installed the setup, is now 25 degrees. Should that be considered normal? The timing marks match the marks on the lower timing cover
msq and mlg files attached
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AlexTurbzy
ECUs and Tuning
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Jul 26, 2022 12:54 PM





