![]() ![]() And for a beginner, this could be really confusing and overwhelming.īut it shouldn’t be this way because everything has its ins and outs. In addition to this, you will also need a multimeter to troubleshoot these sensors and other components that you have collected codes on. Nowadays having an OBD2 scanner tool is one of the essentials if you want to diagnose a problem that is causing the check engine light or any other light on the dashboard. So, if you want to learn more, follow along. This is why it is useful to be aware of them as well. Later on, we will discuss the symptoms that are associated with this code, and then we will learn how to diagnose and fix this code.Īfter we are done with this code, we will cover the P0011 and the P0014 codes, these codes very often happen along the P0012. Then we will learn the P0012 code meaning and what are the main causes why it appears. But you shouldn’t worry because we are going to cover all of them in-depth.įirst, we will learn more about car diagnostics. Then you go over the possibilities that could cause this problem and frankly, there are more than a few things that could cause this P0012 code to appear. The important thing is that you are aware of it and you are able to diagnose the issue with an OBD2 scanner. The check engine light turns on all of a sudden and you end up panicking what could it be the problem? This situation has happened to all of us, to be honest. Mainly because at the beginning you don’t know what is it. Having a problem like this can be a really frustrating thing to deal with. DON'T be a "Diagnostic Agnostic".Are you experiencing some weird symptoms with your engine and you diagnosed the code P0012? What does this code mean? More on that and how to solve it in this article, where we will elaborate on it in-depth and you don’t want to miss that. You seem to have the knowledge and desire to learn/DIY, but lack the Diagnostic Tools. There are also screens which show VANOS Solenoid function. It WILL take several hours to download & install the software, and much of the technical terminology is in German, but Google Translate handles the German, and the numbers are in English.įorum help to allow you to View, Save, and attach to post here the necessary Diagnostic Screens (such as Live Data of Cam Angles as received by DME) would prevent guessing. That is particularly true if BOTH Cams had same fault (P0012 & P0015).Ĭheapest solution to be able to do "Professional Diagnostics", IF you have a Windows 10 OS Laptop, is to download FREE INPA Software, and only cost is $45 for BimmerGeeks K+DCAN cable to connect Laptop to OBD II Socket. ![]() The loose "center vane" on the cap may have contributed to LOW oil pressure at idle with warm engine (lowest oil viscosity). Reading Live Data would give you a clue as to when & under what operating conditions (Temp, RPM, etc.) the Intake Cam Angle is LESS than requested by DME (VIA VANOS Solenoid increasing oil flow to Intake VANOS).Īs you appear to realize, oil pressure supplied to the VANOS units is critical at Low RPM/Idle. THAT could be due to a wiring or connector issue (RE-Check and clean pins/sockets of Connectors for BOTH the Intake Cam Sensor AND the Intake VANOS Solenoid. What it DOES mean is that Intake Cam is NOT being properly advanced, at SOME time, or under certain engine conditions. It does NOT mean that there is improper function of the Intake VANOS Solenoid. That code does NOT mean that you are getting NO Cam Angle Signal from the Intake Cam Sensor. Your Straight-6 engine only has ONE cylinder bank and 'A' Camshaft is the Intake Camshaft. I don't have the precise Algorithms for P0012/2A82 code, but Bentley's Definition of that code is " 'A' Camshaft Position Timing Over-Retarded (Bank 1)". So please answer the following questions:ġ) What is the Make & Model of any Scan Tool available to you?Ģ) Can it display Live Data? Particularly, can it display Actual Cam Angles, both Intake (what P0012 refers to) & Exhaust Cams, as Live Data with engine running? There's MORE to Diagnostic Software than simply reading fault codes.ģ) Can it display "Freeze Frame Data", which is a "Snapshot" of system conditions at the moment a fault code was saved? You wind up spending MORE throwing parts than if you bought proper diagnostic tools. In your case, if you do NOT have the proper diagnostic tools, or know how to use them, you CANNOT do "Good Diagnostic Work". You've heard the proverb: A bad workman blames his tools. Vanos solenoids - $35 for a pair from Amazon I was due for a lot of maintenance so I parked the car and finally worked on it the last couple weekends when the weather warmed up.Īfter replacing all of this, which was due anyway:Īftermarket oil cap and Mann filter (the center vane was detached) This code among others came up in January along with a rough idle and whistling noise. ![]()
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