Chrisw Posted October 19, 2021 Report Share Posted October 19, 2021 I'm currently running launch control but for some reason the RPM limit isn't kicking in. I've set the launch RPM limit to say 3000 but the car revs and holds at 4500. The launch control is confirmed as activated and the ignition trim is working its just the rpm limit that's not working. It's like something else is taking priority in limiting RPM. Any ideas? Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 19, 2021 Report Share Posted October 19, 2021 Attach a log and the tune Quote Link to comment Share on other sites More sharing options...
Chrisw Posted October 19, 2021 Author Report Share Posted October 19, 2021 Attached is my tune and logg demonstrating the issue. Launch control 2.llg Chris Supra Launch Control.pcl Quote Link to comment Share on other sites More sharing options...
Adamw Posted October 20, 2021 Report Share Posted October 20, 2021 Your ECU is on very old firmware, all limiters had just been changed and were experimental in the firmware you are using. They had a major update in V4.5 then another in V4.6. So you really need to update your firmware, the last version is 4.10. Quote Link to comment Share on other sites More sharing options...
Chrisw Posted October 20, 2021 Author Report Share Posted October 20, 2021 Will update and report back. Quote Link to comment Share on other sites More sharing options...
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