brett&gayle

i just acquired a 99 c5 today and it had a diablo tuner in the glove box and the little kid in me came out and i plugged it into the obd2 port just to see if i could find out what tune was in the car. well after realizing i was not where i needed to be i let the tuner do its thing and waited for it to tell me to disconnect ..... when i went to start the car it would start for a second and die. i disconnected the neg battery cable and it starts and runs thru the neighborhood i need to know what to do can someone help me please????!!!! PS it has a BBK intake, 80 mm tb, cold air intake, and borla cat back exhaust.

tblu92

So is it still dying after start up ??
If not then don't worry--Most likey it is a column lock issue that is putting the car into the no start mode This is common on all 97-99's
If it happens again report back and see if you can pull up any codes or messages on the dash

06MonteSS

on those older vette calibrations, it's not uncommon to have to disconnect the battery cable after a tune flash for that exact issue.

brett&gayle

thats exactly what i had to do. thanks for the info