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2001 BMW 325xi P0365 Code: CMP Sensor Issue After Head Replacement

Model: 2001 BMW Fault Code: P0365 Posted: 2008-12-03 17:09

Hi, I own a repair shop and am currently troubleshooting a recurring P0365 code on a 2001 BMW 325xi. We recently replaced the cylinder head, and for about three weeks, no diagnostic codes appeared. However, after that period, the vehicle started showing up with the P0365 code indicating a problem with the Cam Position (CMP) sensor. We have already replaced both the intake and exhaust CMP sensors for Bank 1 and Bank 2, but the code persists. After researching online resources, I found very limited information specifically addressing this fault code on the 2001 BMW 325xi model. This has led us to suspect deeper mechanical issues beyond sensor replacement.

Related fault codes

P0365

Comments (2)

Anonymous 2008-12-03 18:03

If original equipment (OE) CMP sensors were installed, it's likely that the camshaft timing was not properly aligned during reassembly of the cylinder head. This misalignment can cause the P0365 code to appear even after sensor replacement.

Anonymous 2008-12-03 22:40

That’s exactly what we’re now investigating. We also tested the exhaust camshaft position sensor and suspect it may be defective from the factory. We plan to replace this sensor and verify the timing. The BMW VANOS system is notoriously difficult to adjust correctly—often requiring three to four attempts to get it properly calibrated. Additionally, we believe the intake camshaft might be slightly advanced, which could cause mid-range engine bogging.