something is telling it that it is running lean, and is trying to correct.

Does it go into closed loop? how long after that point does it go rich/stall?

I would be looking at the o2, temp switch. I cant really think of the rest.

I could be wrong, but if the eha is unplugged, it just reverts to open mode?

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Eugene

10 E63 AMG
93 300te 4matic
07 BMW X3
14 Ford F-150 Fx2