This week our liberty gt went into limp mode with a DBW CEL (P02xx).
It was towed to S&J Automotive where they ran through the usual checks, cleaning plugs, trying a replacement throttle body actuator and pedal, etc etc.
After a couple of hours cleaning, testing etc, they went to replace the ECU with a spare. When unplugging the ECU, oil (literally) dripped out of the plug. Oil vapour had been sucked through the loom from the exhaust AVCS cam to the ECU.
They cleaned it up, installed an 06 gt ecu and the car has been running like a dream since.
This was the first time they'd seen this issue, and it's the first time I've heard of it happening.
I'm now on the hunt for an 04 gt ecu (5EAT), stock or tuned for intake and 98. If anyone has an ecu they want to sell, let me know.
Also, can anyone tell me if a JDM ECU would plug and play? I hear they have a more aggressive tune which would be nice out of the box. yahoo japan has a couple of cheap ones.