Idle Dips coming to a stop/ hard start when hot

[Cbaranski]

Still very new to the tuning game because I'm tired of spending money and ending up with the same results. I'm trying to find the answers myself but having a hard time. I got an LQ9 with BTR TN cam, TBSS intake and LS3 tb, Marine 8.1 42lbs. injectors, has shortie headers with not cats. The engine starts fine when cold, but hard to start when warmed up. I've checked for leaking injectors and the o rings, I even went as far as changing the intake manifold gaskets. so my problems are hard start when hot, and idle dips while in gear rolling to a stop.

[SiriusC1024]

It would help to have a log.

Here's the data for those injectors. Probably not something you want to hear, but it'll help to retune the airflow models.

[Cbaranski]

It would help to have a log.

Here's the data for those injectors. Probably not something you want to hear, but it'll help to retune the airflow models.

Right on, thank you. This will help

[Cbaranski]

I thinkI fixed the dipping idle, but now I still have hot start issues. Wont start with the key cranking, but now if I hold the pedal to the floor for a couple seconds or so then she fires and runs poorly for a bit.LQ9 w BTR TN Cam 2006 Silverado Rev 6 Shift Points(3)5+7.hpt

[horsepowerguru427]

I thinkI fixed the dipping idle, but now I still have hot start issues. Wont start with the key cranking, but now if I hold the pedal to the floor for a couple seconds or so then she fires and runs poorly for a bit.LQ9 w BTR TN Cam 2006 Silverado Rev 6 Shift Points(3)5+7.hpt

Holding pedal to the floor while cranking cuts the injectors off: "Clear Flood Mode". I believe fuel pulse mass is where you want to look. Check cranking VE as well. Should match VE in those cells.