SES EGR code
12-17-2007, 04:18 PM
#1
SES EGR code
Today i went to warm up my max and notice the service engine soon (SES) light was on, so i took it to autozone for a code check, the SES code was for the EGR system, the guy at autozone told me the valve is probably stuck in the open position.
Has anyone ever cleaned a EGR valve before, and will doing so release the valve .
Has anyone ever cleaned a EGR valve before, and will doing so release the valve .
12-18-2007, 10:59 AM
#4
Could be serious, I had it happen to mine. If I remember the code was P1402 or something.
Basically pieces of catalitic converter have entered the valve and effed it up. The dealership changed the valve for me.
There is a TSB for it that calls for inspection and possible replacement of catalitic converters.
Basically pieces of catalitic converter have entered the valve and effed it up. The dealership changed the valve for me.
There is a TSB for it that calls for inspection and possible replacement of catalitic converters.
12-18-2007, 01:48 PM
#5
Senior Member
Join Date: Jan 2006
Posts: 210
Well I just heard back from the dealership and looks like I had the same problem as xoomer. Cat fragmented and made the EGR valve stick open. It also caused a cylinder 5 misfire. I am at 59k miles and they are replacing everything for free under warranty. 
12-18-2007, 01:51 PM
#6
Senior Member
Join Date: Jan 2006
Posts: 210
BTW heres a thread that helped me decide to go to the dealership.
http://www.6thgenmaxima.org/forums/viewtopic.php?t=3527
http://www.6thgenmaxima.org/forums/viewtopic.php?t=3527
12-18-2007, 06:52 PM
#7
Thanks for the info guys i think this happend because i was using 87 and 89 octane off and on,today i took out the EGR valve, and check it for build up it was clean,and i open the valve with a small screwdriver,i cleaned the valve with some brake cleaner and reinstall it, i still have a SES if it dosen't go out after a couple days, i'm going to have purchase a new one.
This stuck my car only have 40k and no warranty.
This stuck my car only have 40k and no warranty.
12-19-2007, 01:45 AM
#10
Senior Member
Join Date: Jun 2003
Location: a meadow south of Atlanta
Posts: 8,143
VQPRO - Bezzle01 is correct. This should be covered under the 60K power train warranty.
The use of 87 or 89 gasoline should have no effect in the area of your problem. There may have been very small pieces of the catalytic converter you didn't see. Or something else. But if the problem continues with 87 octane, then changing to 93 shouldn't fix it (although some novice techs might suggest this).
By the way, you mentioned switching between 87 and 89 octane. The owners manual says it takes the 6th gen system approximately one full tank of driving before it fully recognizes and adjusts to a new octane. During that tankful, it is not properly adjusted for the octane being used, and is not running efficiently. I wouldn't recommend changing octanes more than a few times a year, like say using one octane for cool season driving and another for warm season driving. I have not changed octanes a single time in the 3 1/2 years I have owned my '04.
The use of 87 or 89 gasoline should have no effect in the area of your problem. There may have been very small pieces of the catalytic converter you didn't see. Or something else. But if the problem continues with 87 octane, then changing to 93 shouldn't fix it (although some novice techs might suggest this).
By the way, you mentioned switching between 87 and 89 octane. The owners manual says it takes the 6th gen system approximately one full tank of driving before it fully recognizes and adjusts to a new octane. During that tankful, it is not properly adjusted for the octane being used, and is not running efficiently. I wouldn't recommend changing octanes more than a few times a year, like say using one octane for cool season driving and another for warm season driving. I have not changed octanes a single time in the 3 1/2 years I have owned my '04.
12-19-2007, 11:50 AM
#11
VQPRO - Bezzle01 is correct. This should be covered under the 60K power train warranty.
The use of 87 or 89 gasoline should have no effect in the area of your problem. There may have been very small pieces of the catalytic converter you didn't see. Or something else. But if the problem continues with 87 octane, then changing to 93 shouldn't fix it (although some novice techs might suggest this).
By the way, you mentioned switching between 87 and 89 octane. The owners manual says it takes the 6th gen system approximately one full tank of driving before it fully recognizes and adjusts to a new octane. During that tankful, it is not properly adjusted for the octane being used, and is not running efficiently. I wouldn't recommend changing octanes more than a few times a year, like say using one octane for cool season driving and another for warm season driving. I have not changed octanes a single time in the 3 1/2 years I have owned my '04.
The use of 87 or 89 gasoline should have no effect in the area of your problem. There may have been very small pieces of the catalytic converter you didn't see. Or something else. But if the problem continues with 87 octane, then changing to 93 shouldn't fix it (although some novice techs might suggest this).
By the way, you mentioned switching between 87 and 89 octane. The owners manual says it takes the 6th gen system approximately one full tank of driving before it fully recognizes and adjusts to a new octane. During that tankful, it is not properly adjusted for the octane being used, and is not running efficiently. I wouldn't recommend changing octanes more than a few times a year, like say using one octane for cool season driving and another for warm season driving. I have not changed octanes a single time in the 3 1/2 years I have owned my '04.
12-23-2007, 11:34 PM
#15
12-26-2007, 07:50 PM
#17
If the mechanic is not a dealer and they don't know how to apply the TSB, the fix they'll provide will only be temporary. If there are any loose pieces in the catalitic converter they will continue to do the damage to both the EGR and possibly to the engine as was the case with Kam's car.
12-27-2007, 04:21 AM
#18
If the problem is just the EGR valve , replacing it might not be too expensive ,but if the catalitic converter is causing the problem it could cost alot to get it fix .you can check out the EGR valve price on buynissanparts.com
12-27-2007, 06:02 AM
#20
I would have to add here that if he takes it to any mechanic he will not know to check for loose pieces in the Cats. So my advice is print out the TSB and then take it to the mech.
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