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2006 Chrysler 300C 5.7L Reappears with P0522 Code After Oil Pressure Sensor Replacement

Model: 2006 Chrysler 300C 5.7L Fault Code: P0522 Posted: 2016-04-28 10:32

I recently replaced the oil pressure sensor on my 2006 Chrysler 300C 5.7L, which initially resolved a P0520 code. However, I am now experiencing a recurring P0522 code that clears from the OBD-II scanner but returns upon each engine start-up. The question is: does this indicate a need for PCM reprogramming, or is there another underlying issue? The P0522 code specifically relates to oil pressure sensor circuit faults and may point to electrical problems rather than a faulty sensor itself. According to official diagnostic data: - F855 (5V Supply Circuit) Shorted to Ground - G6 (EOP Signal Circuit) Shorted to Ground - F855 Supply Circuit Open or High Resistance - G6 EOP Signal Circuit Open or High Resistance I am wondering if the issue stems from a wiring fault, connector corrosion, or improper installation. Additionally, I'm curious whether using an aftermarket oil pressure sensor—rather than one manufactured by Chrysler—is contributing to this recurring code. Any insights on how to properly diagnose and resolve this would be greatly appreciated. Thanks, Big Jer!

Related fault codes
P0522
Comments (12)
Anonymous 2016-04-28 11:52

You should never replace parts solely based on a diagnostic code—codes do not indicate part failure. The P0522 code points to a circuit issue involving the oil pressure sensor's wiring or electrical connection. This could be due to a short, open circuit, or high resistance in the signal or power lines. Check for loose connectors, corrosion, and ensure wires are intact—especially in the first few inches before the connector. Do you have access to an OBD-II scanner or a digital multimeter (DVOM)? Possible causes: - F855 5V Supply Circuit Shorted to Ground - G6 EOP Signal Circuit Shorted to Ground - F855 Supply Circuit Open or High Resistance - G6 EOP Signal Circuit Open or High Resistance A key question: Did you purchase the oil pressure sensor directly from a Chrysler dealership? Aftermarket parts may not be fully compatible with the vehicle's PCM.

Anonymous 2016-05-14 12:46

I have a P0456 code and am considering replacing the purge solenoid. The system suggests checking the gas cap, but I've already replaced it. Is there another step I should take?

Anonymous 2016-05-14 12:50

Toys1 wrote: - I have a P0456 code and am considering replacing the purge solenoid. The system suggests checking the gas cap, but I've already replaced it. Is there another step I should take?

Anonymous 2016-05-14 13:03

This is a 2006 model with a 5.7L engine. P0456 indicates a small leak in the EVAP system. The first step should be inspecting the gas cap seal to ensure it's properly tightened. I suspect you replaced the gas cap because of this code, but that may not resolve the root issue. In automotive diagnostics, a 'smoke test' is often used to locate leaks in the EVAP system—leaks can occur anywhere from the fuel tank to the hoses. Guessing without testing is costly and unreliable. For accurate diagnosis, consider performing a smoke test on your vehicle. More information: http://www.obd-codes.com/p0456

Anonymous 2016-05-14 13:08

A smoke test was performed and the technician concluded that the purge solenoid is the only component showing leakage.

Anonymous 2016-05-14 14:33

Diagnosed as a faulty purge valve—replacement (R&R) of the solenoid is recommended. The purge solenoid is located on a bracket near the right rear of the engine. Did I misunderstand your original question? Was this about P0522 or EVAP-related issues?

Anonymous 2016-05-14 16:36

I replaced the purge solenoid, but the 'Check Gas Cap' warning still appears even after resetting the system.

Anonymous 2016-05-14 17:39

It's possible the diagnosis was incorrect. Where exactly did the smoke test detect a leak? Was it only at one location? I'm concerned about communication gaps here—something seems unclear. In my experience, relying solely on a 'check gas cap' message is not sufficient to diagnose an EVAP issue. A scan and code analysis are essential for accurate diagnosis.

Anonymous 2016-06-04 18:45

From kev2: Did you get the oil pressure sensor from Chrysler? kev2, I regret now that I didn’t purchase a replacement sensor from a Chrysler dealership—only because I assumed all aftermarket sensors were interchangeable. Now I’m realizing they may not be compatible with the vehicle’s PCM. Is this accurate? Your opinion would be appreciated!

Anonymous 2016-06-05 09:11

We often recommend OEM (Original Equipment Manufacturer) parts—especially for electronic components connected to the Powertrain Control Module (PCM). In professional automotive repair, 'comebacks' or aftermarket parts labeled as OEM are not reliable. They may not match the original specifications. OEM means: Dodge = Dodge, Toyota = Toyota, Ford = Ford. Be cautious of aftermarket sensors marketed as 'OEM'—they are often not identical to dealer-grade components.

Anonymous 2016-06-18 19:52

Hi kev2 (P0522 code now resolved). After spending hours researching online, I finally replaced the aftermarket oil pressure sensor with one from a Chrysler dealership. To my surprise, the P0522 code disappeared. This experience taught me an important lesson: when replacing electronic components wired to the PCM—such as sensors—always use OEM parts from the original manufacturer. Pro tip: After installing new parts, drive the vehicle for at least 100 miles before attempting a safety inspection. The PCM requires time to fully reset internally. I initially missed this detail because my inspector rejected the car due to a 'NOT READY' status on his electronic tester—now I understand why. Live and learn! I miss my 57 Chevy!

Anonymous 2016-06-19 16:14

Great to hear your issue is resolved. Stay safe and enjoy the summer! Visit us again—we’d love to have you back.