zzww1251

Hello, so i am new to the whole infiniti scene and dont know what to do. the codes that originally had was p0021 and p0524, and p0300. as a student in college im usually broke and cant throw money into parts that dont fix the problem. after reading the forums, i decided to change the timing cover gaskets in hope of fixing my problems. after fixing it i did a test drive and the freaking SES light turnied back on. i ereased the light and did some more reading and added to the correct oil level. so now im stuck with p0300(stored code) and p0021, p0011 as pending codes which im sure will turn back on, the p0011 will be a new one for me. before i decide to buy intake variable solenoid, are there any other suggestions that could help? my air filters are dirty but idk if that makes a difference. i bought the car at 100k miles, could it be the spark plugs that are throwing the code?
any help is appreciated. on a side note when putting back the 2 front solenoid covers, bank 2 had a slightly larger hole in which there looked like a cylindrical strainer. i didnt see that in bank 1.
09 g37x
thanks

Glover998

iTrader: (1)

Oil gallery gasket failure maybe ?!

zzww1251

That's what was replaced

Black Betty

iTrader: (60)

Both P0011 and P0021 are timing related. Possibly related to your recent repair of the rear timing cover gasket replacement.

http://engine-codes.com/p0011_nissan.html
P0021 Nissan Intake Valve Timing Control Performance Bank 2 OBDII Engine Light Trouble Code | Engine-Codes.com

zzww1251

now a p0345 code is popping up as pending code. camshaft bank 2 sensor. you think they are are related? would i be able to switch the intake valve solenoid between bank 1 and 2, like i can with the camshaft sensors? feels like the car shifts hard with jerking
thanks