will an 04 GTO computer work on 99 f-body motor
#4
TECH Enthusiast
It will plug and play with a GTO OS. You do not have to repin anything if you do not want to but you will get some codes for the O2 heaters due to the diagnostics but you have to turn them off. I believe the gas gauge is reversed also and you will have to set the VATS for the BCM if memory serves me right. The rest should be good including the A/C, etc. For what it is worth the 04 GTO PCM has about 3x faster processor. I believe the 411 is about 16mhz and the 243 is about 40mhz. It also has twice the flash memory.