Replacing ecu (3.8 auto)

[lout]

once you have accepted that the ecu is not faulty
we need to look at the fuel trims and see what is causing the issue
O2 sensors are most likely reporting correctly
no more parts cannon
when you can access a decent scan tool
check some live data
if the coil dfi is faulty, that issue will still present now
all you have done is stop the ecu going into closed loop and changing fuel trims

 

[ConnorJames05]

once you have accepted that the ecu is not faulty
we need to look at the fuel trims and see what is causing the issue
O2 sensors are most likely reporting correctly
no more parts cannon
when you can access a decent scan tool
check some live data
if the coil dfi is faulty, that issue will still present now
all you have done is stop the ecu going into closed loop and changing fuel trims

Fair enough, I’ll post the results of that, as well as photos for future reference to those who see this. Thanks heaps mate.

 

[ConnorJames05]

Fair enough, I’ll post the results of that, as well as photos for future reference to those who see this. Thanks heaps mate.

Problem ended up being a faulty new coil pack. I tested them and one of the coils was completely dead, wouldn’t start on just two if it was plugged in, and there was no spark at all. Drives great now, just a trans mount to get.

 

[lout]

Problem ended up being a faulty new coil pack. I tested them and one of the coils was completely dead, wouldn’t start on just two if it was plugged in, and there was no spark at all. Drives great now, just a trans mount to get.

and bonus points for posting back with the outcome