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-   -   Doubt about my A/F Ratio (http://www.the370z.com/tuning/38028-doubt-about-my-f-ratio.html)

Vince@R/T 09-13-2011 08:31 AM

^^^ Sound like you just need some more work on Cranking enrichment. Also there are things you can do with the Electronic throttle tables to open the throttle blade slightly during cranking to help with starting. As far as your fuel trims being at "#114" it means the ECU is adding 14% fuel at idle and needs to be trimmed in a lil better. I'm sure Sam can send you some updated tuned ROMs to help your issues.

tjaartk 09-16-2011 02:43 AM

Thanks Vince, where woulkd one access the throttle blade settings at cranking? Is this available in the ROM editor?

EVOHUNTER 09-17-2011 12:55 PM

TJAARTK , im having the exact same problem!! makes me not want to drive the car to grocery store/ convience store because i dont want to look like a idiot when it doesnt start. If i give her some gas she will fire up but its annoying! Im also having a problem with my idle, idles at about 950-1000rpm but will dip down to maybe 600rpm. Almost boging out, but feels more like a misfire.
im going to bring it back to my uprev tuner, he said he can fix this.. weve messed around with the starting issue and still havent found an fix for it.
I thought maybe i didnt drill out my fuel regulator enough or to much?

Vince@R/T 09-21-2011 01:03 PM

Quote:

Originally Posted by tjaartk (Post 1315617)
Thanks Vince, where woulkd one access the throttle blade settings at cranking? Is this available in the ROM editor?

They are in the ETC Table you can datalog it while cranking and see where the cells are and raise the values in that area that will crack the throttle for you while you are cranking to help with hot start. Also UPREV just came out with some cranking enrichment table that came be modified as well.

tjaartk 09-22-2011 05:33 AM

Thanks Vince,

Sam has sent me a ROM file with adjusted cranking enrichment tables - and this has made a big improvement. It appears that the standard cranking enrichment settings was too high (rich) for our altitude (6000ft).:bowrofl:


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