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P0345 Fault Diagnosis for 2006 Nissan Pathfinder 4.0L with All-New Sensors and Timing Components

Model: Nissan Pathfinder Fault Code: P0345 Posted: 2019-04-12 13:53

2006 Nissan Pathfinder 4.0L (89000 miles) - After replacing the timing chain, tensioners, timing solenoids, all gallery gaskets, and all three sensors (including crankshaft and camshaft position sensors), the P0011 and P0021 codes have been resolved. However, today the vehicle stalled again—exactly as before. This time, a new fault code has appeared: P0345. To obtain consistent readings during diagnostics, I had to revert to the original crankshaft position sensor (CKP), which suggests potential compatibility or signal integrity issues with the newly installed sensors. All camshaft sensors were replaced using genuine Nissan factory parts. Despite these replacements and thorough troubleshooting, the vehicle continues to stall intermittently—no clear pattern. The issue persists even after addressing a loose battery terminal that was found during diagnostics, which had caused significant crankcase oil loss (7.5 quarts drained; overfilled). I suspect this may have affected the crankshaft sensor or its environment. Currently, the vehicle is back in the shop. I do not have an OBD-II scanner with detailed diagnostic data—only basic code descriptions. I am seeking expert insight on possible causes of P0345 and whether further checks (such as wiring integrity between CMP and PCM, or sensor signal validation via lab scope) are warranted.

Related fault codes
P0345
Comments (2)
Anonymous 2019-04-14 11:14

Did you review the freeze frame data? It might provide critical context on the stall event. Ensure that the crankshaft position sensor (CKP) was replaced with genuine Nissan factory parts. Check for loose or damaged wiring between the camshaft position (CMP) sensor and the Powertrain Control Module (PCM). A lab scope can help verify signal integrity—perform a wiggle test on the connector and harness while observing the waveform to detect any drop or distortion.

Anonymous 2019-04-15 13:33

I conducted some troubleshooting and discovered a loose battery terminal that came off easily. This led to significant oil loss from the crankcase—7.5 quarts drained, which I then overfilled. The mechanic initially thought this might have damaged the crankshaft position sensor, but no improvement has been observed. The vehicle is now back in the shop. All parts were genuine Nissan factory replacements. My OBD-II scanner only displays code descriptions and not detailed parameters. I will update with findings once further diagnostics are completed.