Hey interesting question
not sure what the ecm has to do with it ?
stock ecm ( and tried back up one ) has a TT chip
.032 NGK
all sensors are new grounds good no error codes, no MAF error code, new wires from Bob, with TR 6
new plugs, no etc etc. all the normal stuff checked that we...
Bought TR6 unit with delco d955a coil pack, have not got it to work yet. It starts then dies out.
chasing the problem down still. Lots of people promote it here.
Can't wait to drive my car again.