G35 Coupe V35 2003 - 07 Discussion about the 1st Generation V35 G35 Coupe

Check Engine light

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Old Oct 12, 2012 | 09:59 PM
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Check Engine light

Hello guys, I recently got a up rev tune last week. There are rumors out there that the tune is suppose to clear the CEL and shouldn't come back on right? Well after a week with the tune, my CEL came back on. What should I do guys.
 
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Old Oct 12, 2012 | 10:06 PM
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Find out what the error code means, that's a start. Unless you have a destroyed sensor you might want to revisit your tuner. Maybe something was wrong the the program....
Gary
 
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Old Oct 12, 2012 | 10:15 PM
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m56
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Did you go to Jtran?
 
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Old Oct 13, 2012 | 01:52 PM
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Originally Posted by seymore4
Did you go to Jtran?
Yea last week. I went to auto zone the week before I got the tune and they said its either one of the cats gone bad or one of my o2 sensor is bad. Probably gonna go back to Jtran to see whats the problem.
 
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Old Oct 13, 2012 | 01:59 PM
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good luck with that, I've been hearing a lot about guys who ended up driving to Austin to get it redone correctly..
 
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Old Oct 13, 2012 | 02:39 PM
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What do you mean?
 
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Old Oct 13, 2012 | 03:04 PM
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Uprev is in Austin. I have it from a very credible source that they've been retuning a lot of jtrans customers recently..
 
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Old Oct 13, 2012 | 08:05 PM
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Yea but the CEL isn't because of the tune. I got the CEL 3 weeks before I even talked to Jtran.
 
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Old Oct 13, 2012 | 08:22 PM
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what was the code? If you've got TP or HFC's it common to throw a P420 or 430, most tuners just disable it in the rom. If you don't have access to a code reader most auto parts stores will let you borrow one for free
 
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Old Oct 13, 2012 | 08:40 PM
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I don't have the paper on me but I know it was a HFCs problem.
 
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Old Oct 13, 2012 | 08:44 PM
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They should be able to turn it off and reflash you with no problem then. Just stop by the tuners and let them know
 
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Old Oct 13, 2012 | 08:47 PM
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Thanks seymore, are you on strictly G's forum?
 
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Old Oct 13, 2012 | 08:50 PM
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What do you mean?
 
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Old Oct 13, 2012 | 08:54 PM
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Nvm lol thought I seen your G before on a different forum
 
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Old Oct 13, 2012 | 08:57 PM
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The picture in my sig isn't my car, its one I tuned when I was down at Uprev this summer
 
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