hello, new to tuning so please be gentle lol. have a 2007 trail blazer ss that we put a summit 8701 stage two cam in and cant get it to idle, it does ok for cold start but has a slight stumble. had it where it would hot start fine last night but today it will not idle at all. any help would be greatly appreciated. I have attached my tune file
Set the idle timing around 18-20 degrees. Cut the over/underspeed spark correction tables down to +/- 8 degrees instead of 20 degrees.
It may need a touch more base running airflow compared to stock and for sure you need to go over the MAF/VVE with a wideband to make sure fueling is under control.
2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.
If you don't post your tune and logs when you have questions you aren't helping yourself.
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