Doubt about my A/F Ratio

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?

Vince@R/T · 09-21-2011, 01:03 PM

Quote:

Originally Posted by tjaartk

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).

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09-13-2011, 08:31 AM	#1 (permalink)
Vince@R/T Base Member Join Date: Mar 2011 Location: Lansdale PA Posts: 87 Drives: 99 GS400 Rep Power: 16	^^^ 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.

09-16-2011, 02:43 AM	#2 (permalink)
tjaartk Base Member Join Date: Jan 2011 Location: South Africa Posts: 29 Drives: 370Z Rep Power: 16	Thanks Vince, where woulkd one access the throttle blade settings at cranking? Is this available in the ROM editor?

09-22-2011, 05:33 AM	#4 (permalink)
tjaartk Base Member Join Date: Jan 2011 Location: South Africa Posts: 29 Drives: 370Z Rep Power: 16	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).