Hey im tuning this motor and have had issues with idle surging.
Combo: 2003 lq4, 317 ported heads, 10:1 comp, tbss intake, 90 mm tb, comp camp 54-424-11 ( 212/218 @.50 .558/.563 lift 115 lsa) , shorty headerrs
I have tried all the idle tuning tricks I could find in the search feature with no luck.
Also I have set the tine to speed density to the best of my knowledge and when applying the AFR correction factors to the VE tables I noted no change in AFR. This confused me a lot.
I have attached the tune and log file with Wide band input.
HEARTMANN 6.O LS MOTOR idel tuning 12.hpttune 12 surging sample.hplHEARTMANN 6.O LS MOTOR idel tuning 12.hpttune 12 surging sample.hpl
Any help would be appreciated.