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m104 low power when hot

dcurbet

E500E Newbie
New Member
Hello all
looking for some advice on an m104 w463.

Drives nice and fairly agile when cold but once it warms up becomes underpowered (agility and responsiveness is gone) and has a hard time keeping speed even on the lightest hill. I can tell its acting different because the shifts become more jerky as if vacuum changes as well affecting the modulator.
No issues otherwise really maybe some low idle sometimes... the cat is really hot as well.
Is it just running way rich? EGR still in place. Maybe it is to blame?

thx for any pointers.
 

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