open loop

[Tunning @ LMR]

Any way to make 05 and up car run with no trims in open loop? I have the car in open loop now but the short term trims are still messing with my part throttle air fuel. Its a race car.

[Bill@HPTuners]

I think in LS2's you must disable the trims and set the o2 sensor tables high or something...its been a while but its not just a one and done on them as compared to LS1 pcm's...GM is a changin

[Tunning @ LMR]

I did the ect vs startup ect, and the delay table is maxed, and the L trim ect enable is set 283, 284. But the short term trims stil work. I will try the maxing the O2 readiness ect table.

[Bill@HPTuners]

I did the ect vs startup ect, and the delay table is maxed, and the L trim ect enable is set 283, 284. But the short term trims stil work. I will try the maxing the O2 readiness ect table.

yeah I think thats the one

[Bill@HPTuners]

http://www.hptuners.com/forum/showpo...17&postcount=2