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Tuner
Dynamic vs Desired Airflow gone amuck
P59 DBW with a 6.0, ported 243 heads, TBSS intake, stock 3 bolt TB on ITC adapter. "Stage 3" summit cam.
First startup it actually idled pretty good following Krambo's tuning guide. Below about 176? ECT it was OK, but after that it seemed to go shit on successive start ups. Below 176 the Dynamic vs Desired are pretty much instep and the truck wants to stay running. After 176, dynamic vs desired are off by as much 30% and it doesn't want to stay running.
One rookie mistake I made is left the displacement at 5.3. I think I should change that to 6.0L. Maybe its part of the adaptive idle (Idle>Rpm). Things really go wonky in the Rick3 log file around 176? which is the minimum for adaptive idle. perhaps that's where the 5.3 vs 6.0 dependency comes into play.
Any idea's you might have would be appreciated.
rick3.hpl
RickGMCsierra_inj_ve_3.hpt
rick4.hpl
Last edited by Just Chuck; 09-15-2020 at 11:41 AM.
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Tuner
Try disabling long term idle trims and re tune braf, also log short term idle trim