TBI HELP!!! Needing a chip burnt for my Race hauler!!

**Jefferson** · 07-18-2023

I have a 1993 p30 that I pull my stock car enclosed trailer with.
I installed a brand new, full roller gen 6 454 crate engine.
I have a SPR 54mm bored throttle body with the 18psi spring kit on a dual plane Edelbrock intake.
I currently have a Harris chip.
I do have the ability to datalog. (ALDL Droid) wonderful product!
I do not have the equipment to tune or burn a chip
I am looking for someone to use my data to correct the tune I have.

Here's my problem.
My cold idle speed is very high and RICH RICH RICH! My closed loop blm is always 88-98.
I have went through EVERYTHING that would cause these issues outside of the tune. This thing mechanically is perfect. I do believe these issues are my current tune. I have backed fuel pressure down to 13psi just so I can use it to go racing. Its manageable right now but I need to do something fairly quick and Harris doesn't seem to be willing to correct this tune.

7060 computer
BAJW chip with the adapter to the new Harris chip.
Thanks for reading.

**In-Tech** · 07-18-2023

Where are you located?

**dave w** · 07-18-2023

Theoretically 80# 454 injectors @ 18 PSI will have a BPW of 115.

Theoretically 80# 454 injectors @ 13 PSI will have a BPW of 135.

Theoretically 74# 454 injectors @ 18 PSI will have a BPW of 124.

Theoretically 74# 454 injectors @ 13 PSI will have a BPW of 146.

Possibly update the BPW Constant vs. EGR vs. Air Flow Table with a Theoretical BPW?

http://www.gearhead-efi.com/Fuel-Inj...Information-85 Post #8 has a $85 VE Correction Table for TunerPro.zip file that can be very helpful for tuning VE tables.