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hey, im a bit stuck on this ls1 turbo,
i tune stand alone ecu's all the time, and im used to finding and fixing issues quickly, but i dont know where to go with this vehicle,
it came to me with unknown 850cc injectors and an ecu that was apparently tuned for stock injectors and a big cam,
the current engine has a stock cam,
i tried injector data for 80lb injectors but it either idles at 10:1 or 29:1 randomly and somtimes wont come down from 2500rpm
Well, your first course of action should be to pull a stock file from the repository, get two and verify the are indeed stock. Then copy over everything back to stock, and start tuning from there. You will likely need to apply a custom os to get the ability to apply boost to the ve table depending on what ecm your working with(i assume gen3 as you said ls1)
if you need help past that your gonna have to give us some info on what your working with, and post the tune file and a log of your issues
Thanks, so there?s stock files available?
The vehicle is an 02 Commodoor ute, it was tuned with the turbo on it previously, so it has 2 bar tables,
As far as I can tell, there is no fuel base maps with actual injector time in these ecu?s? It seems that they use a fuel number and apply many corrections to it.
The operating system was called p01, I think.
With stock computers like these the main thing to know if that once a few basic things are set, they are to never be touched again unless the parts are changed or the fuel used in changed.
Cylinder volume, injector flow rate, short pulse adder, min injector pulse, offset vs volts, the MAP sensors linear and offset data. All of those are set and forget tables. All the fuel control will be done by the MAF or VE tables to reach the target air fuel ratio/lambda.
Open loop EQ ratio needs to be set to run at stoich when warm and you set the power enrichment eq ratio and boost eq ratio as you see fit. You can create an AFR or Lambda error against the commanded AFR/Lambda to correct the MAF/VE for fueling.