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Old 03-04-2006, 12:39 PM
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JETPILOT
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Default CEL Codes

Can someone run these CEL codes for me? Thanks

P1274
P1283

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Old 03-04-2006, 01:01 PM
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mrtomcat
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1274 - Ignition Coil 4
1283 - Fuel Injector Output Stage

I got those of an Import DB, I believe the OBDII codes are the same across cars

good luck
Old 03-04-2006, 01:58 PM
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Thanks for the help....

Can anyone interpret that info?

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Old 03-04-2006, 03:42 PM
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MIAPLAYA
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1273 and 1284 are rear O2 sensor codes. Left and Right bank.
Old 03-04-2006, 04:15 PM
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mrtomcat
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yeah but he asked for 1274 and 1283 not 1273 and 1284...
Old 03-04-2006, 04:34 PM
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P1274 is for AF sensor bank 1 rich shift

P1283 is for AF sensor bank 2 lean shift
Old 03-04-2006, 05:01 PM
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Layman's terms?

Something to worry about?

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Old 03-04-2006, 06:57 PM
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it is saying your front 02 sensor on the right or passenger side was reading rich for an over extended period of time. 1283 is the opposite side front 02 reading lean. could have been a minor clitch in the cam timing.
i would just clear it and see if it comes back.
Old 03-04-2006, 08:08 PM
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Phatmitzu
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I have the exact same two codes, and I have yet to find out the way to perm. clear it.
Old 03-04-2006, 09:46 PM
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I had that issue when I first installed the APS injector harness... Bank 1 was too lean, Bank 2 was too rich. flipped the injector harness and viola!

I understand this has NO applicability to your TN situation, but just wanted to share one reason/one outcome.
Old 03-04-2006, 11:46 PM
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Originally Posted by MIAPLAYA
1273 and 1284 are rear O2 sensor codes. Left and Right bank.
I keep getting these two codes day in day out. What could be the cause? I checked my O2 and they seem fine.
Old 03-05-2006, 01:48 AM
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Originally Posted by lucidazn
I keep getting these two codes day in day out. What could be the cause? I checked my O2 and they seem fine.
did you check the voltage on them? are they giving a correct reading. there is quite a few different reasons for this. need more info
Old 03-05-2006, 09:53 AM
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Do your downpipes have the O2 sensor extenders welded on? If not just replace the downpipe with a new one from Turbonetics. My car first got those codes. Turbonetics then redesigned the donwpipe to add the O2 extenders. I think very few kits shipped without them but its something to check.
Old 03-05-2006, 11:37 AM
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Don't mean to jack your thread JETPILOT, but is 1273 for the left or right bank? I'm throwing two of these codes.
Old 03-05-2006, 11:47 AM
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a good way to remember is that bank 1 is the same side as cylinder 1. the paasenger side. 1273 is that side.
Old 03-05-2006, 12:58 PM
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Originally Posted by MIAPLAYA
Do your downpipes have the O2 sensor extenders welded on? If not just replace the downpipe with a new one from Turbonetics. My car first got those codes. Turbonetics then redesigned the donwpipe to add the O2 extenders. I think very few kits shipped without them but its something to check.
Yup, I have the downpipe with the extenders.

Originally Posted by overZealous1
did you check the voltage on them? are they giving a correct reading. there is quite a few different reasons for this. need more info
Yeah, I had this problem before. Bank 2 O2 was fine, and Bank 1 O2 was screwy. Voltages weren't constant, and had that replaecd. CEL code went away for about 500 miles and they are back. I don't think it could be the O2, they were just recently replaced and checked. What else could it be? I don't want to spend another $60 to get an ODB diag.
Old 03-05-2006, 01:01 PM
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Originally Posted by lucidazn
Yup, I have the downpipe with the extenders.



Yeah, I had this problem before. Bank 2 O2 was fine, and Bank 1 O2 was screwy. Voltages weren't constant, and had that replaecd. CEL code went away for about 500 miles and they are back. I don't think it could be the O2, they were just recently replaced and checked. What else could it be? I don't want to spend another $60 to get an ODB diag.
There was a TSB a while back from Nissan regarding the CEL being thrown by the O2. The only to fix it if you have the downpipe with the extensions is to take the car to Infiniti, apply the TSB, then send your ECU back to Turbonetics to be reflashed again.
Old 03-05-2006, 01:03 PM
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Originally Posted by MIAPLAYA
Do your downpipes have the O2 sensor extenders welded on? If not just replace the downpipe with a new one from Turbonetics. My car first got those codes. Turbonetics then redesigned the donwpipe to add the O2 extenders. I think very few kits shipped without them but its something to check.

I keep hearing about this. I know I have the original pipes but what exactly is the difference.

I am hoping not to run into the problem AFTER I do my fuel system/injectors/tune (in a week or so) especially as I may coat the pipes. I have not seen those codes to date though...well not since it has got cool here that is.

Last edited by 35ounces; 03-06-2006 at 10:08 AM.
Old 03-05-2006, 01:09 PM
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Originally Posted by 35ounces
I keep hearing about this. I know I have the original pipes but what exactly is the difference.

I am hoping not to run into the problem AFTER I do my fuel system/injectors/tune (in a week or so) especially as I may coat the pipes. I have not seen those codes to date though.
If you have never thrown the codes then you probably have the correct pipes.
Old 03-05-2006, 03:06 PM
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Well the shop that installed the kit also installed Down-Shift's and they mentioned the difference. SO I assume I have the originals pipes...I got in on that original GB from AAM so it could have been one of the early kits.

What exactly is the difference? Any pics that show it?


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