Vehicle: Toyota Tacoma 2006 V6, 155K mi
Problem: I had OBDII Code P0348: Camshaft Position Sensor A and fixed it by replacing the broken camshaft position sensor. However, the check engine light didn't stay off very long. Only after about 100 mi, I got a
P0101: Mass or Air flow Circuit and soon after
P0022: Camshaft Position A Timing Over-Retarded Bank 2. Those are the only two codes I am currently getting. The truck does lose (most likely burn rather than leak) oil because I have to add a quart every cca 400 mi. Could the oll loss be affecting the OCV?
Q1: Some basic research indicated this might be related to the
oil control valve or the
VVT valve. Could the oll loss be affecting the OCV?
Q2: Another suspicion is that, when I replaced the broken camshaft position valve, I too the functional one from the driver's right and put it in the socket where the broken one was and then put the brand new sensor in the driver's right side, IOW I rotated them. I doubt this matters but can it be causing the new code?
Q3: I think the P0101 (Mass or Air flow Circuit) might be because, as I had to lift the air intake, I may have introduced a leak with one of the clamps or maybe the gasket around the air filer is not sealing too well. That is an easy fix but could it be causing or related to the P0022 (Camshaft Position A Timing Over-Retarded Bank 2)?
Q4: Are there tests I could do to narrow down the range of possibile causes or should I just go for the new OCV or even VVT? They are original, haven't been changed. Of course, the greatest concern is that the camshaft might indeed be mistimed although the truck drives just fine.