Engine light, "Increased Emissions" / camshaft correlation code...

2k328ci · 04-02-2018, 04:35 PM

Hi all,

I just got an engine light on for the last few days with the note "Increased Emissions" warning on my screen. It doesn't seem to drive any different, but when I took it to my local mechanic he scanned and got a code "Camshaft Correlation". What could this be? I searched and didn't get any useful results. The mechanic suggested that I take it to a stealership because it was beyond his abilities. Has anyone gotten this code before? What could it mean? How much would it cost? My dealership is overbooked and is not looking at appointments till next week as well as a recommended shop here RMP motors. Any ideas and suggestions in the meantime?

TIA.

nycplumber · 04-02-2018, 04:45 PM

What're the codes?

2k328ci · 04-02-2018, 07:42 PM

I didn't actually ask for the number, my mechanic just said "Camshaft Correlation". I really should get myself something to read the codes.

z3papa · 04-04-2018, 01:19 PM

I just had the same thing happen with my car. Codes were P2626 (O2 sensor pumping current trim/open bank), P0392 (camshaft position sensor B circuit low input), P0368 (camshaft position sensor B Circuit high input), P0027 (crankshaft position correlation). Car was running but not optimally. Scheduled a appointment and order some camshaft position sensors which are arriving today. Yesterday, code cleared on its own, and car is running great.

My wild guess is that the car retarded timing as a result of bad gas, and after that cleared the system, and the car ran fine with all the pep it had before. I'm going to wait to see if it reappears and have the sensors ready for replacement.

Edit -- For those so interested, the retail price on these sensors is around $170, they can be generally bought for $120-140, but if you buy from AutohausAZ, they are $60.

2k328ci · 04-04-2018, 02:54 PM

Hmm, I did just get gas before the light went on. When the local mechanic reset my light, it came back on after a few hours of driving again (but with the same gas). I have an appointment with RMP to see them Apr 18. In the meantime I guess I should drive around to get rid of the tank of gas and see if it goes away with a new tank? I've been trying to avoid driving the car the last few days.

z3papa · 04-06-2018, 06:00 PM

As an update -- my issue never came back. Contra to my indy shop owner's prediction. The car is running strong with no issues or stuttering. I've got the sensors I bought in anticipation of resolving the issue and may keep them. I will say it's a head scratcher.

2k328ci · 04-06-2018, 11:49 PM

Well today I drove my car after not for the last few days and the light was off and remained off. I still have 1/2 tank of the original gas. I don't get it, but fingers crossed!

Syedd_a · 04-20-2024, 11:57 PM

Hey any update on this what was your issue

charliev68 · 04-21-2024, 12:53 PM

I would have your engine timing physically checked if that error occurs again. Also, your VANOS might be malfunctioning.

04-02-2018, 04:35 PM	#1
2k328ci Private 11 Rep 78 Posts Drives: 2009 M3 M-DCT / 2018 X3 M40i Join Date: Nov 2010 Location: Toronto, Canada iTrader: (1)	Engine light, "Increased Emissions" / camshaft correlation code... Hi all, I just got an engine light on for the last few days with the note "Increased Emissions" warning on my screen. It doesn't seem to drive any different, but when I took it to my local mechanic he scanned and got a code "Camshaft Correlation". What could this be? I searched and didn't get any useful results. The mechanic suggested that I take it to a stealership because it was beyond his abilities. Has anyone gotten this code before? What could it mean? How much would it cost? My dealership is overbooked and is not looking at appointments till next week as well as a recommended shop here RMP motors. Any ideas and suggestions in the meantime? TIA.
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04-02-2018, 04:45 PM	#2
nycplumber Major 686 Rep 1,230 Posts Drives: slow Join Date: Apr 2016 Location: nyc iTrader: (0)	What're the codes?
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04-02-2018, 07:42 PM	#3
2k328ci Private 11 Rep 78 Posts Drives: 2009 M3 M-DCT / 2018 X3 M40i Join Date: Nov 2010 Location: Toronto, Canada iTrader: (1)	I didn't actually ask for the number, my mechanic just said "Camshaft Correlation". I really should get myself something to read the codes.
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04-04-2018, 01:19 PM	#4
z3papa Captain 190 Rep 969 Posts Drives: 11 E92 M3 ZCP, 07 335i Join Date: Oct 2009 Location: Bloomington IL iTrader: (2)	I just had the same thing happen with my car. Codes were P2626 (O2 sensor pumping current trim/open bank), P0392 (camshaft position sensor B circuit low input), P0368 (camshaft position sensor B Circuit high input), P0027 (crankshaft position correlation). Car was running but not optimally. Scheduled a appointment and order some camshaft position sensors which are arriving today. Yesterday, code cleared on its own, and car is running great. My wild guess is that the car retarded timing as a result of bad gas, and after that cleared the system, and the car ran fine with all the pep it had before. I'm going to wait to see if it reappears and have the sensors ready for replacement. Edit -- For those so interested, the retail price on these sensors is around $170, they can be generally bought for $120-140, but if you buy from AutohausAZ, they are $60. __________________ Sold 2011.5 E92 M3 ZCP. Last edited by z3papa; 04-04-2018 at 03:35 PM..
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04-04-2018, 02:54 PM	#5
2k328ci Private 11 Rep 78 Posts Drives: 2009 M3 M-DCT / 2018 X3 M40i Join Date: Nov 2010 Location: Toronto, Canada iTrader: (1)	Hmm, I did just get gas before the light went on. When the local mechanic reset my light, it came back on after a few hours of driving again (but with the same gas). I have an appointment with RMP to see them Apr 18. In the meantime I guess I should drive around to get rid of the tank of gas and see if it goes away with a new tank? I've been trying to avoid driving the car the last few days.
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04-06-2018, 06:00 PM	#6
z3papa Captain 190 Rep 969 Posts Drives: 11 E92 M3 ZCP, 07 335i Join Date: Oct 2009 Location: Bloomington IL iTrader: (2)	As an update -- my issue never came back. Contra to my indy shop owner's prediction. The car is running strong with no issues or stuttering. I've got the sensors I bought in anticipation of resolving the issue and may keep them. I will say it's a head scratcher. __________________ Sold 2011.5 E92 M3 ZCP.
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04-06-2018, 11:49 PM	#7
2k328ci Private 11 Rep 78 Posts Drives: 2009 M3 M-DCT / 2018 X3 M40i Join Date: Nov 2010 Location: Toronto, Canada iTrader: (1)	Well today I drove my car after not for the last few days and the light was off and remained off. I still have 1/2 tank of the original gas. I don't get it, but fingers crossed!
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04-20-2024, 11:57 PM	#8
Syedd_a New Member 2 Rep 25 Posts Drives: Bmw M3 Join Date: Mar 2020 Location: Astoria, NY iTrader: (0)	Hey any update on this what was your issue
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04-21-2024, 12:53 PM	#9
charliev68 Second Lieutenant 204 Rep 203 Posts Drives: bmw m3 Join Date: Feb 2020 Location: CA iTrader: (1)	I would have your engine timing physically checked if that error occurs again. Also, your VANOS might be malfunctioning.
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