Hey all. I've owned my 2011 G37x sedan for about 7 years now (bought with 36k miles certified preowned). No modifications, just daily driven to and from work. The past 2 years I've rarely driven it. I would start it here and there on occasion or drive it quick to do some errands. I've noticed the I've been getting a few check engine codes which has put the car in limp mode. The car has 109k miles on it now and I've put maybe 1500-2000 miles on it over the past 2 years. Normal 3750-4k mile oil changes, tire rotation etc.

The codes I'm getting are; P0021 (Intake Valve Timing Control Bank 2), P0300 (Multiple Misfires Failure), P0524 (Engine Oil Pressure Too Low).

About 6 months ago I did a full oil change and changed all the spark plugs. I've put MAYBE 150-200 miles on the car since then. Car idles rough and when you accelerate, it wont go above 2700 rpms before it begins to "jerk." It's an automatic so I would just manually shift gears up or down so I can get the car home when this would happen. I've reset the ecu a few times and it would begin to drive perfectly fine for a short period (approx 20-30 miles) before the check engine light comes back on and it begins doing the "jerking" motion again. I'm trying to save myself thousands of dollars by not going to the dealership so any insight on what could be the issue would be highly appreciated. Hopefully its a sensor or two that I can just replace myself but I'm not sure.

Thanks in advance for any assistance!

 

How old is the battery? These cars can do some weird stuff when the battery is almost dead. Mine would get random CEL and SRS codes and would drive rough.

 

Ironically I changed the battery the same day I did the oil change and the spark plugs. I still had the issue. And now because I rarely drive it because of the issues, I've found myself needing to jump it to get it on. I dont want to leave it running for a long period of time in fear I will damage the engine with whatever the hell is going on with it. I've been told it could be the camshaft position sensor bank 2 but I dont want to go replacing sensors that aren't damaged. By the time I'm done, I'd have all the sensors replaced and still have the issues with my luck lol

 

All those codes point to a leaking gallery gasket... stop driving the car and CHECK your oil pressure checked ASAP.

 

Thank you! I have an appointment to bring the car to the Infiniti dealership for a full diagnostic test next week. I've informed them that I believe it might be the oil gallery gasket. Hopefully this isn't thousands of dollars to repair.

 

Good luck and I hope I am wrong and it is something simple

 

Did you ever figure it out? What was the issue?

 

Turned out to be a cracked solenoid that caused all the issues. Fortunately I brought it to a respectable mechanic that told me this without charging me. Costed about $750 to replace and fix through the mechanic. I could have saved if I had done it myself but I wanted it done correctly.

 

if you would've done it yourself you would've spent like $75 bro...

 

@BULL @Nandosan These are the three codes I have. This is starting to be a bit of a can of worms.

 

VVT solenoid?