Originally Posted by AF_Z28
I will try to pull the bin. when we datalogged it, it would record data for 5-10 sec then loose connection for 5-10 sec over and over again. When it lost connection the service asr/asr off lights would come on. Also we think his car is stuck in "limp home mode" but its not throwing any codes, I'm confused, any ideas?
might want to double-check that ground connection to the ecm, make sure its tight/clean and the wire isnt damaged
i know on the fbody, the aldl ground tees into the fuel pump relay ground wire, which is the same wire as the pcm block ground.. i bet it's the same on the vette..
all you need for datalogging to work is keyswitched power, constant power, ground, and that one data wire.. nothing else matters
i just ran into an ecm that was fried, but apparently its very very rare, and it was due to miswiring