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DIY: Do It Yourself
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Old 08-17-2013, 08:22 PM   #1
kmnwa
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Join Date: Aug 2013
Location: Highland Village, TX
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My Ride: 2001 BMW330 Ci
Persistent P0369 code

I recently purchased a 2001 BMW 330CI. The car looks great but the check engine light was on. Pulled the codes & had 1 for exhaust camshaft position sensor, 1 for the intake camshaft position sensor, and 4 codes for the O2 sensors. I replaced both camshaft position sensors with parts from O'reilly Auto Parts then cleared the codes but the exhaust camshaft code & the O2 codes came back as soon as I restarted the engine. I bought an OEM exhaust camshaft position sensor from BMW dealer & replaced the aftermarket camshaft position sensor then cleared the codes but they came back again. Next I rebuilt the VANOS with parts from Beisan then cleared the codes again but they come back again after I restart the engine. The seals in the VANOS were stiff before I replaced them & the engine definitely runs stronger since I rebuilt the VANOS but there is a noticeable lope in the idle when the check engine light reappears. Now I'm stumped on what to do to get rid of the P0369 code for the exhaust camshaft position sensor. I feel like the O2 sensor codes will probably clear once the camshaft position code clears. Anyone have any ideas on what to try next? I appreciate any suggestions you may have.
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Old 08-18-2013, 09:33 AM   #2
markusmarkus
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Persistent P0369 code

What brand/model of code reader did you use? Generic code readers typically provide erroneous or misleading codes. Invest, as a minimum, in a BMW specific code reader such as one from Peake.

Also, I recommend buying only OEM replacement sensors as sensors from parts stores like O'Riley are typically inferior (i.e., junk).


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Old 08-18-2013, 11:02 AM   #3
kmnwa
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Thanks for the reply, "markusmarkus". I started with the Oreilly camshaft position sensors then went to OEM after I read that aftermarket sensors were junk. Now I have OEM sensors and the intake camshaft position sensor trouble code went away, but the exhaust camshaft position sensor trouble code is still there. I read somewhere that the VANOS seals may need replacing on high mileage vehicles and could cause erroneous exhaust camshaft position sensor codes so I have replaced the VANOS seals also. Since I replaced the VANOS seals there is a noticeable improvement in performance but the P0369 code reappeared after clearing the code.
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Old 09-14-2019, 10:44 AM   #4
tmoh
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Join Date: Feb 2013
Location: botswana
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My Ride: 330i "E46"
I'm experiencing a similar persistent PO369 code I have already replaced both Ex CPS and Venos seals, engine runs fine but tends to struggle when accelerating and produces a louder exhaust sound than normal. I have checked signal voltage with multimeter while turning the engine with a wrench and it is fine.what more can I check
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