I am having a problem tuning my car with SCT Pro Racer Advantage and livewire for Datalogs. When I do a idle datalog my STFT are perfect on passenger side bank 1 and on bank 2 it is differentiated lean by 10-13 pts I checked for exhaust leaks and smoked for vacuum leaks seams like 100 times. I had injectors flow matched and also swapped them side to side with no change. I also swapped o2 sensors side to side with no change. Sometimes When I do a idle log the tune is spot on from bank to bank then if I shut the car off and start a new log 10min later the tune is off again.. WTF. I have a 2v 4.75 MMR 750 with a On3 single turbo 70lb Siemens injectors twin 320 pumps upgraded wiring and FPDM. I have Edelbrock fuel rails with Vic Jr intake My returnless setup fuel is Plummed with 8an the following way
So fuel is fed from
factory line with regulator in to
The p/s rear fuel rail to
p/s front rail out to
crossover to
Fuel rail pressure sensor on d/s front rail
Then it feeds rest of d/s rail
Could this setup be efecting the tune because the FRPS isn’t getting a chance to
Read the pressure on bank 2 rail because it is before the rail. I currently have the factory fuel regulator still do I eliminate that?
So fuel is fed from
factory line with regulator in to
The p/s rear fuel rail to
p/s front rail out to
crossover to
Fuel rail pressure sensor on d/s front rail
Then it feeds rest of d/s rail
Could this setup be efecting the tune because the FRPS isn’t getting a chance to
Read the pressure on bank 2 rail because it is before the rail. I currently have the factory fuel regulator still do I eliminate that?