Intake & Exhaust Questions and info regarding various aftermatket exhaust systems for the G35 (Headers,Y-Pipes, and Cat-Back Systems)

why did service engine light soon come on?

Old Sep 20, 2008 | 11:43 PM
  #16  
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SES Warning light....?

Strange....check your fluid levels and get your oil/filter changed if your due.
I know I have an SES light but it's never come on when I'm driving, just before I start the car. (when everything on the dash is lit up)
Gary
 
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Old Sep 21, 2008 | 01:44 AM
  #17  
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just changed the oil myself recently . hm might check all the other fluid levels. same here the light just came on all of a sudden!
 
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Old Sep 21, 2008 | 04:49 PM
  #18  
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SES/Check is NOT a mainteance reminder.
Count up the possible codes and you will see there are 500+ possible defects tested/ monitored.

A voltage if 20% too high or low going all the way to zero on an individual sensor will set a code.

When the light comes on the least critical thing it means is the emissions are out of spec and the worst is immenent failure of a major system.

Every owner of a 1996 and later vehicle should have an inexpensive scanner and the FSM to look up the code and what to do to go forward with diagnosis.
 
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Old Sep 21, 2008 | 04:56 PM
  #19  
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Well that is the most ridiculous warning light ever concieved. Something as vital as a 'check engine' light should not say 'service engine soon'...
 
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Old Sep 21, 2008 | 06:11 PM
  #20  
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+1

Service engine soon... ok sure. when i have time.

check engine.... Something is wrong, must be fixed now.

Thats what I think the difference is between the two.
 
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Old Sep 21, 2008 | 06:22 PM
  #21  
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From: An Englishman in New York (state)
Originally Posted by ninous26
+1

Service engine soon... ok sure. when i have time.

check engine.... Something is wrong, must be fixed now.

Thats what I think the difference is between the two.
Exactly my thinking. Serive engine soon sounds like a reminder to 'service your engine', not that something might be catastrophically wrong.
 
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Old Sep 21, 2008 | 08:58 PM
  #22  
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yup i agree
 
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Old Sep 21, 2008 | 08:59 PM
  #23  
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i think my light came on because of the fujita intake. since its not carb legal and stuff. and the code said too lean which means too much air not enough fuel... i dunno.
 
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Old Sep 29, 2008 | 12:29 AM
  #24  
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yes the light went out.. iono why prolly cuz of sucky gas or since i cleaned out the maf sensor. knock on wood it doesnt come back!
 
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Old Nov 14, 2008 | 04:30 PM
  #25  
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thanks for all the info
 
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Old Apr 28, 2009 | 10:19 PM
  #26  
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From: NYC if you can drive here you can drive anywhere
also under low acceleration i hear a like rattle is that the transmission sounds like some metal clanging anyone else experience this. sorry to plague the boards with these ocds i have hahaha![/QUOTE]

*** about the rattle That is the rear axles, if its like a chain noise. Theres a TSB (technical service bulletin) for this just bring it in to the dealer and they will fix it under warranty, all they do is re-lube the axles.
 

Last edited by mawells787; Apr 28, 2009 at 10:21 PM. Reason: to make my post clearer
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Old Apr 30, 2009 | 01:05 PM
  #27  
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The manual says, the first thing to do is clear the self-learning in the ECU. The car probably just has to re-learn to operate with the new intake. After clearing the ECU, it should take 10 minutes to learn. As long as nothing else was changed or damaged around the same time, you should be OK. Look at the possible causes on this page...
why did service engine light soon come on?-p0171_a.jpg
 
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Old Apr 30, 2009 | 01:10 PM
  #28  
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thanks for all the info. its ok now
 
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