ok so i have no VR trigger signal input at all, tried to do record trigger logs and i recieve some bytes when i crank the engine but other than that i get no input at all.
the car used to run great, i had been doing alot of work on the car and forgot to reconnect one ground wire from pin 26 to the main sensor ground junction in the harness near the ecu. its obviously reconnected now but i think i may have damaged the lm1815 chip. everyone i talked to had said i probably burned the p259 chip but my fans and fuel pump run off those channels and are working fine. i even disconnected leg 21 to see what would happen and still no crank input.
i ordered a lm1815 chip and should have it soon. in the meantime is there any tests i can do to verify that is whats wrong?
and if it is and has to be replaced whats the best way of doing it? its so damn small. i heard something about using a heat gun with tinfoil and pliers to remove the old one?? any suggestions?
other than that is there anything else i should be looking at for no vr trigg input??