replacing the part is about that easy (don't forget the seal under it). The fun part is adjusting the FI system for smooth operation.
The lambda feedback is provided by the black EHA module on the side. With it, the computer can compensate for lots of ills, but only if the physical components are actually working as intended. For instance, no vacuum leaks, correct fuel pressure, clean component passages, correct setting for the air flap, properly working relays, unbroken wires. (Jeez that list just feels longer every time we write it.)
-CTH
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