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2009 Dodge Journey Engine Bogging at Acceleration with P0452 and P0463 Codes

Model: 2009 Dodge Journey Fault Code: P0452 Posted: 2016-09-23 14:32

I've been experiencing engine performance issues with my 2009 Dodge Journey. Several months ago, the fuel gauge started reading 'Empty' after starting the vehicle, cycling between 'Full' and 'Empty'. I initially ignored it, estimating fuel based on mileage. Recently, I began noticing a significant loss of power when accelerating—my engine feels like it's bogging down, though idle is normal and full throttle performance is unaffected. I've not observed any traditional engine-related fault codes (like those for intake manifold or valve issues), but my OBD2 scanner has detected two specific codes: P0452 (EVAP Pressure Switch Stuck Closed) and P0463 (Fuel Level Sensor Circuit High Input). I'm wondering if these sensor-related faults could be directly causing the engine to lose power during acceleration. I understand that fuel sensors can affect gauge readings, but I'm concerned whether these codes are linked to drivability issues. Since no other performance-related codes appear, I suspect a wiring problem—possibly shorted wires affecting the fuel pump module or sensor circuits. I've also noticed intermittent behavior where the fuel gauge would jump from three-quarters full to empty and back within minutes, with the check engine light briefly illuminating. I’ve used an O'Reilly's Auto Parts scanner, which shows these codes intermittently. However, I realize that not all scanners capture complete data or freeze frame information. A more advanced scanner may reveal additional fault patterns or PCM behavior. Additionally, I'm aware of recall H21 related to wiring chafing in the vehicle—though I haven't had it addressed yet. Suggestions: Could these codes be causing engine bogging? Is there a known TSB (Technical Service Bulletin) for P0452 that applies to my 2009 model? What about fuel pressure testing or PCM reflash options? Any recommendations on diagnosing wiring issues or sensor replacements?

Related fault codes

P0452P0463

Comments (4)

Anonymous 2016-09-23 14:52

Could you clarify your statement: 'I'm not getting any codes as I said, only P0452 and P0463'? Make sure to use a full-featured OBD2 scanner to retrieve all stored and active fault codes. The symptoms you describe—engine bogging during acceleration—are concerning. A possible root cause could be faulty wiring in the rear harness affecting the fuel pump module or sensor circuits. Have you experienced any electrical interference, such as new accessories installed, a recent rear-end collision, or exposure to water damage? For performance issues, check fuel pressure and ensure your scanner captures complete data including freeze frame records. Also, verify if TSB 18-003-09 applies to your vehicle—this TSB includes a PCM reflash for P0452; however, it's not free and may require dealer service.

Anonymous 2016-09-23 15:04

I meant to clarify: I do have the P0452 and P0463 codes. There are no intake manifold or related performance-related fault codes prior to this issue. The only notable pattern before the fuel gauge stopped working was intermittent behavior—once, the gauge showed three-quarters of a tank, then dropped to 'Empty' with the check engine light turning on; minutes later, it would jump back to three-quarters and the light would turn off. This suggests possible sensor instability or electrical interference.

Anonymous 2016-09-23 15:34

I've clarified that—still no other codes related to intake manifold or performance. I’ve used a scanner from O'Reilly's, but I know it may not capture all fault data. A high-quality OBD2 scanner is essential for retrieving complete diagnostic information, including freeze frame data and real-time sensor readings. If the engine is bogging under load, more codes should appear—especially if there’s an underlying wiring or module issue. I’ve also been advised to check for recall H21 (wiring chafing), which may affect fuel system performance. While I haven’t had it addressed yet, a dealership visit might be necessary for inspection and repair.

Anonymous 2016-09-23 16:04

I haven't completed any recalls—recall H21 involves wiring issues due to chafing, which could affect fuel sensor circuits. I’ve avoided dealerships so far due to cost concerns, but the symptoms are becoming more serious. My scanner (from O'Reilly's) only shows P0452 and P0463 intermittently. The overall pattern points strongly toward wiring faults, sensor failure, or a need for PCM reflash. I suspect this isn’t a simple fix—likely requiring professional diagnosis, fuel pressure testing, and possibly a dealer-level repair.