Diagnostic article Generic OBD-II
P2173: Renegade manifold-air comparison and the oil-vapor tube
On the specified Renegade, FCA describes P2173-00 as an air-leakage comparison failure involving the manifold.
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Documented application
FCA 09-010-20 covers 2017–2018 Jeep Renegade BU with the 1.4 L Multiair turbo EAM engine in North America, APAC and EMEA. Other engines need their own diagnosis.
The code alone does not identify a failed part or establish that a vehicle is safe to drive. Confirm the vehicle, reporting module and applicable service procedure.
What the documented case means
On the specified Renegade, FCA describes P2173-00 as an air-leakage comparison failure involving the manifold. The reported behavior can include jerking, reduced performance or limp mode. This particular bulletin points to the oil-vapor inlet tube rather than declaring that every P2173 requires a throttle body. Its application is the 1.4 L Multiair turbo, not every engine offered in the same model year.
The distinction that changes the repair
The documented correction is a modified tube arrangement containing a restrictor and insulating sheath. The restrictor has a defined orientation: its smaller opening faces the intake-air chamber and its larger opening faces the oil-vapor separator. That matters because an arbitrary restriction, a reversed insert or an improvised hose is not the repair described by FCA. The bulletin also distinguishes a clamp that is discarded from one retained during service; it is a controlled modification, not simply tightening every connection.
How to use this evidence
A technician should first match the engine, vehicle and complaint, then check for additional faults requiring separate diagnosis. The source directs those other conditions to be addressed before its modification is applied. Ask the workshop to document which tube configuration is installed and whether the complete specified repair was performed. Afterward, confirmation should include the original drivability complaint as well as returning faults. The bulletin supplies no universal manifold-pressure threshold and does not prove a vacuum leak on a different vehicle.
Source and applicability
FCA 09-010-20 covers 2017–2018 Jeep Renegade BU with the 1.4 L Multiair turbo EAM engine in North America, APAC and EMEA. Other engines need their own diagnosis.
Manufacturer bulletin, page 1 · Manufacturer bulletin, page 2 · Manufacturer bulletin, page 3 · Manufacturer bulletin, page 4 · Manufacturer bulletin, page 5 · Manufacturer bulletin, page 6
Article source documents
Source checks describe how the text was prepared; they do not certify a diagnosis or confirm compatibility with every vehicle using this code.
Original code reference
Dictionary definition
Throttle Actuator Control System - High Air Flow Detected
This definition retains its original catalog scope. The article above is limited to its explicitly documented application.
Reference scope
Generic OBD-II definition.
A manufacturer label does not establish the model, year, engine or module to which a diagnosis applies. Read the safety and diagnostic limits.
Definition source
- DTC Database: pinned community code definitions
Source checked · MIT