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**Shane@DBPerformance** · 12-03-2004

The long term fuel trims still have some effect on the 2G ECU up to 4500 RPMs in open loop, but yea the DSM ECUs run off of hardcoded maps and don't us the O2 sensor at high load.

12-03-2004	#12
Shane@DBPerformance formerly ecoli Join Date: Oct 2003 Location: On the dyno Posts: 4,892	The long term fuel trims still have some effect on the 2G ECU up to 4500 RPMs in open loop, but yea the DSM ECUs run off of hardcoded maps and don't us the O2 sensor at high load. __________________ www.dbptuning.com