98 to 99 ECM swap gas gauge not working ....HELP ...please

[Nastyvette]

Ok so did the dreaded conversion on a 1998 Corvette ECM to a 1999 Corvette ECM . Everything else is working awsome, tuning went great , but gas gauge is not working .

Now I did pull the pin for the grey wire on at pin 46 , but I am hearing that I need to do a fuel segment swap for the gauge to work . Seems that the 97/98 gauges work in reverse of the 99 and up . Any help would be greatly appreciated .

Thx
Manny

[ChipsByAl]

The fuel gauge gets its data from serial communication. The segment swap that is done on the Camaro/Firebird doesn't apply. If you scan the PCM can you see any data for either level sensor? Do you have any DTC's?
Al

[Nastyvette]

I'm not seeing any DTC's , I don't have a TECH2 only the EFILive .