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Cause for the dreaded P0011/P0021 codes that everyone is curious about

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Old 01-08-2014, 12:08 AM
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2007 G35x

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Originally Posted by infinitidude View Post
Yes the gaskets will fix the issue. I will check in the morning to see if the gaskets are indeed available separately. I will post the part numbers for you if they are available. I know at one time you could only get the gaskets with the cover itself which is crazy.
Thank you! Mine is actually throwing a P0024 code, but I think it is related to the other codes you mentioned.
Old 01-08-2014, 12:09 AM
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Originally Posted by trulka View Post
I will check my oil and top up if I need to. Thanks a lot for the reply! I will update and let you know if it fixed it. I have take off the IVT solenoids and cleaned them a while ago. But I didn't check if they work or check resistance or shorts or anything.. so I will do that next if topping up the oil doesn't keep the codes away
Yeah we see these codes all the time on the V35 models normally with the higher mileage which is normally a low oil level issue. The I35's and QX4 models are the worst for these codes. You are definitely not the only one for sure.
Old 01-08-2014, 12:19 AM
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Originally Posted by bunkers20 View Post
Thank you! Mine is actually throwing a P0024 code, but I think it is related to the other codes you mentioned.
Now the P0014 and P0024 are exhaust valve timing codes. These codes normally pop up due to the exhaust retarders going bad. Those are the 2 big caps so to speak on the front timing cover with the sensors in them. There is an electromagnetic clutch on the back of this that works with the exhaust cam sprocket and we do replace these on a sort of regular basis also. Parts are a little costly, but not as labor intensive as the rear timing cover gaskets. Once they are replaced, A Consult 3 scanner will need to be hooked up and an exhaust valve timing relearn procedure will need to be performed which has to be done with the car running at 3k rpms. Hope this provides a little more insight to these crazy codes.
Old 01-08-2014, 12:35 AM
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Originally Posted by infinitidude View Post
Now the P0014 and P0024 are exhaust valve timing codes. These codes normally pop up due to the exhaust retarders going bad. Those are the 2 big caps so to speak on the front timing cover with the sensors in them. There is an electromagnetic clutch on the back of this that works with the exhaust cam sprocket and we do replace these on a sort of regular basis also. Parts are a little costly, but not as labor intensive as the rear timing cover gaskets. Once they are replaced, A Consult 3 scanner will need to be hooked up and an exhaust valve timing relearn procedure will need to be performed which has to be done with the car running at 3k rpms. Hope this provides a little more insight to these crazy codes.
Thanks for the info. The Nissan dealer (I will not have it fixed there, have a local mechanic) recommended replacing the rear timing cover. Would that have anything at all to do with the P0024 code?
Old 01-08-2014, 01:09 AM
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Originally Posted by bunkers20 View Post
Thanks for the info. The Nissan dealer (I will not have it fixed there, have a local mechanic) recommended replacing the rear timing cover. Would that have anything at all to do with the P0024 code?
Not at all, the rear timing cover repair is for intake valve timing codes only. You have an exhaust valve timing code which should be the bank 2 exhaust retarder. This part can actually be changed in about 30 minutes, but the relearn procedure that I told you about will still need to be performed after the repairs.
Old 01-08-2014, 01:14 AM
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Originally Posted by infinitidude View Post
Not at all, the rear timing cover repair is for intake valve timing codes only. You have an exhaust valve timing code which should be the bank 2 exhaust retarder. This part can actually be changed in about 30 minutes, but the relearn procedure that I told you about will still need to be performed after the repairs.
Sounds great. Any chance you have a link of where to purchase that exhaust retarder? My mechanic is very small town, and I guarantee won't have the part on hand. If I bring it to him, however, he will probably swap it out while I wait.

I appreciate the info and advice. I can change out sensors and do regular maintenance, but I'm pretty lost on engine repair.
Old 01-08-2014, 10:02 AM
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I do not have a link right off hand but I do have the part numbers for the exhaust retarder that you need. 13040-JK22B (B2 exhaust retarder assy.$569.50) and the gasket part number is 23797-JA10B(retarder gasket $3.87) The gaskets for the P0011/P0021 codes unfortunately are not available to buy individually. You will have to purchase the entire rear cover in order to get these gaskets at this time.
Old 01-08-2014, 05:31 PM
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Originally Posted by infinitidude View Post
I do not have a link right off hand but I do have the part numbers for the exhaust retarder that you need. 13040-JK22B (B2 exhaust retarder assy.$569.50) and the gasket part number is 23797-JA10B(retarder gasket $3.87) The gaskets for the P0011/P0021 codes unfortunately are not available to buy individually. You will have to purchase the entire rear cover in order to get these gaskets at this time.
I figured the part would be rather expensive, but it's nice to know the install is not that labor intensive. You thought that a mechanic could have this done in half an hour? And then of course would have to do the relearn you mentioned as well. Thanks again.
Old 01-08-2014, 06:21 PM
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I figured the part would be rather expensive, but it's nice to know the install is not that labor intensive. You thought that a mechanic could have this done in half an hour? And then of course would have to do the relearn you mentioned as well. Thanks again.
Yes absolutely maybe 30 minutes. It is very easy to replace.Good luck with everything.
Old 01-08-2014, 08:41 PM
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Yes absolutely maybe 30 minutes. It is very easy to replace.Good luck with everything.
The SES light magically disappeared today. Is it common for the P0024 to come and go, or is this unusual?
Old 01-09-2014, 04:20 PM
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omg thank you haha, I been dealing with the P0011 code forever. Do you know if it harms the engine if I don't replace it? Because I been driving for around 5 month and it hasn't came back, I just avoid driving at 1.9k-2k revvs cause it seems like that's when it occurs.
Old 01-10-2014, 01:38 PM
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omg thank you haha, I been dealing with the P0011 code forever. Do you know if it harms the engine if I don't replace it? Because I been driving for around 5 month and it hasn't came back, I just avoid driving at 1.9k-2k revvs cause it seems like that's when it occurs.
I've only heard one of the V36 models come in and had a rattle on the top end like it was completely starved for oil. I guess it just depends on how bad the gaskets are blown out
Old 01-10-2014, 01:39 PM
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The SES light magically disappeared today. Is it common for the P0024 to come and go, or is this unusual?
We have always replaced the cover gaskets when this happens so I'm not 100% sure on that. Most of the one's that we've done have been under warranty st the time.
.
Old 01-10-2014, 04:05 PM
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Only models that I have seen with this problem are the 07-08 sedans with VQ35HR. I'm sure the EX and FX with the VQ35HR could do this as well, but the G35 are the only vehicles so far.
I wonder if G vehicle engine use is generally more agressive than the driver of an EX or FX with the same engine and thus less gasket blowouts? Not sure if that even matters in this failure or not but throwing it out there.
Old 01-11-2014, 04:04 PM
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So I talked with a infiniti Mechanic and you can get just the gasket. The parts number for the gasket is either 13530-JK20B or 13533-JK21A. Not sure which one is which because I asked him for the parts number for the gasket and the rear cover. I'll keep it posted I just sent him another email asking which one is which.

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03, 2002, 2006, 35, code, exhaust, g35, infiniti, leak, nissan, oil, p0011, p0014, p0021, p0024, qx4
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