ok I just burned my first prom and now car won't start. I don't have any stored codes. I have a sd 91 l98 the only thing i changed was the injector constant to 26.4 for new svo injectors. I used pp2 and tunercat to change the prom. car cranks but will not turn over, I can hear fuel pump run when I turn key to on. Checked power at injector and nothing. The car ran before new injectors and new eporm. I am assuming something I did in the programing part of the process. Anyone have any ideas were i messed this up. I am sure it is something stupid. Please help a brother out

 

A few questions I can think of quickly:

What size and type of EPROM?
Where in the chip (address) did you load the BIN?
Have you done a compare against the original BIN to see if it burned correctly?

John

 

The injectors operate by the ecm grounding them.
They should have power to them.