Log in

View Full Version : trying to start 5.3



hwdude
September 28th, 2025, 06:37 AM
i am new here, got a 5.3ls gen 3, 82 mm turbo, 104 tb, with 80 lbs injectors, custom os upgrade ls1, before tuning engine would start and run
pretty good, programed per the instructions, now it will kinda start but is so rich it doesnt want to run or idle, fill the garage with smoke in no time
also has 3 bar map, , os is 0411003, i have looked at everything but i have no idea where i screwed this thing up, and help would be appreciated

nonnieselman
September 30th, 2025, 05:38 AM
Need to post your tune and a datalog

Did you update the MAP calibration?

hwdude
September 30th, 2025, 08:46 AM
map calibration done, no data log, cause it dont run good enough to get log,
working on uploading tune

nonnieselman
October 1st, 2025, 08:52 AM
Do you have data for the injectors?

hwdude
October 2nd, 2025, 06:45 AM
no data for the injectors, 80 lb hr,

nonnieselman
October 8th, 2025, 05:03 PM
no data for the injectors, 80 lb hr,

There are so many different 80# injectors.
You need the data to be able to get the tune sorted out.
Where did you get them?

Your using a newer version of V8 that i am. Ill have to go find my other laptop to be able to open your tune.

hwdude
October 18th, 2025, 07:00 AM
sorry i didnt get back to you, had a knee replaced last week and not with it, i will try to find data on the injecotrs