robert_horsfall Posted November 22, 2021 Report Share Posted November 22, 2021 Got an rb25 with a xtreme wire in with bosch 74mm DBW. I've had this problem since getting the car going and have tried a heap of stuff to sort it. At low speed coming to a stop or just crawling the car will sometimes just stall. Log shows a trigger error afterwards but I think that is from rpm dropping as Idle isn't coming up. I've checked wiring and that side is all good, no vac leaks or anything mechanical. I've attached 2 log file links of it happening and the latest tune file. Log filehttps://drive.google.com/file/d/1M4c8syS13ie9nUaJf94xy9s0sNmB8Gp8/view?usp=sharing Log filehttps://drive.google.com/file/d/12ocy3TWPN9N6vXBPMGotwM7dWsxWYxoa/view?usp=sharing Thanks for having a look, Rob Sil80 E85 Idle control CLOSED LOOP Testing 3.pclr Quote Link to comment Share on other sites More sharing options...
robert_horsfall Posted November 22, 2021 Author Report Share Posted November 22, 2021 after doing a bit of searching found a recentish thread on similiar issue I have speed source setup incorrectly...... Will do the changes to ecu see how it goes Quote Link to comment Share on other sites More sharing options...
Adamw Posted November 22, 2021 Report Share Posted November 22, 2021 Yep, change driven & non-driven wheel speed source to LR, this looks like the main problem - it is closing the throttle trying to pull the RPM down during over-run. Idle ign needs to be more aggressive, try something more like my example at bottom. update to 5.6.8 firmware, there were a few closed loop idle fixes in that. Quote Link to comment Share on other sites More sharing options...
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