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Yesterday my 2010 G37x sedan started acting up (video attached) and I ran the fault codes and came up with P0300, P0524, P0021 (photo attached).
Obviously, I googled the codes but of course, the causes and fixes range from rather simple to complex (at least to me).
A couple of pieces of info that may be related. I bought this only a few months ago and switched it from oil to synthetic immediately but that didn't cause any issues as far as I could tell (no fault codes). The battery died a few days ago and was jumped and runs fine but it is ready to be replaced. These fault codes and driving issues started just a couple of days after the battery died.
I'm just curious if anyone has any experience with these codes and what I should expect. I don't want to have the mechanic take advantage.
This looks like the dreaded rear timing cover gasket issue. How many miles are on the G?
The question is did it go into limp mode or not want to go past 2500 RPM?
Maybe get up under your engine remove the protector cover and see if you are leaking any oil from the bottom part of the engine at all.
Did you try clearing the codes? Or maybe removing the negative AND positive cable from the battery(only say both because just pulling the negative did nothing to reset my ecu but both did)
12-21-2020, 09:27 AM
Fault Codes
