hello I need Community help to help me to find what is wrong about my AFR.
Airfuel was great before engine rebuilt, same tune same maf, same injector, fpr.
I have rebuilded with IE rods my 1.8t aww engine to replace my old awp.
Setup before engine rebuilt was :
-gonzo k04 hybride gttx-052
-stage 3 tune
-630cc @ 3bar
-MAF housing 3''
-3'' cat high flow
-evom fmic
-dv forge
some difference in my new built is:
-Turbo upgraded to blaast stg5 i(mpaller inducer 50.5mm - exducer 60mm)
-swapped wastegate actuator to garrett 12psi from gt28-gt30
-Ie rod drop in 19x144
-stock piston.
-resurfaced head and block
-1st ring gapped at 0.005'' x bore
-2nd ring gapped at 0.0055'' x bore
-all emission deleted but not delete in tune.
-Pcv valve deleted, full vent catch can.
-3'' cat gutted.
-stock head cylinder.
I know I will need a retune for my turbo, but I search why it run so rich, from idle, cruising, and wot. I got insane ignition retard too. I have done logs in second gear.
Do you have any open circuit codes?