Manuals through 2025 now available!
Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.
LEMON is the spiritual successor to CHARM, I recommend you try it!
Link:
lemon-manuals.la or
lemon-manuals.org.ua
(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)
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Pressure Feedback Exhaust Sensor: Description and Operation
Pressure Feedback Electronic (PFE) EGR Sensor:
The Pressure Feedback EGR (PFE) sensor measures exhaust pressure in a chamber below the EGR valve pintle. The
PFE sensor signals the Powertrain Control Module with this information to optimize EGR flow.
