Question about 2005 Infiniti G35

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Service engine light on 2003 infinity g35

Service light came on and book says emissions or fuel cap. the car seems to be running fine. Is there something else I should check

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  • rcfaiken5 Mar 18, 2009

    The service engine soon light is on, but the 2003 Infinity g35 is running fine.

  • jways Apr 22, 2009

    check engine light came on on my 2003 G35, I filled the tank, tightened the cap and drove it for a few days, about 100 miles, light still on, took it to garage, they checked several things fuel mix showed both too lean and too rich,, they smoke tested for leaks, checked injector, all ok light came back on after I drove 50 miles Now what

  • Anonymous Mar 15, 2014

    flashes on the service engine light after putting obd active

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The quickest way to determine the cause is to visit a local parts store, of a major chain such as Autozone, etc. most of these offer a free computer scan that will reveal the source of the engine light. In the mean time, try refueling with a full tank of fresh fuel from a different source than you used the last time. sometimes water or other fuel problems can cause the light to come on.

And yes the loose fuel cap may cause the light. If you have more than 60,000 miles on your car, it may require some tune up parts such as oxygen sensors and such. CHECK YOUR WARRANTY!!! most states require the manufacturer to replace the emission related parts at mileages of 100,000 or even 150,000 so dont buy something you could get for free!

Posted on Jan 04, 2009

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I had the same problem with my G35 05 after i forgot to close the cap, Usually the car will run for about 100 miles or so before the light goes away, but you can also, reset the ECU by checking this site http://www.6mt.net/forum/performance-mods/2833-easy-ecu-reset-procedures.html
Or what i did was pulling the fuses marked "Eng cont/inj, there is a 15A under the hood, in the fusebox near the battery, and a 10A in the driver-side interior fusebox - pull both. (As someone suggested in the same thread)it worked.

Posted on Mar 25, 2009

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Same happen to me, when this happen i took it to chevron techron and added some fuel system cleaner by stp

Posted on Aug 30, 2009

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On these newer cars that code will come up when you get gas, and dont tighten the cap back tight enough. try taking the cap back off and put it back on more than 5 clicks and drive the car for awhile. if this does not clear the check engine light take it to a auto parts store and have them run a scan and erase the code( normally they will do this for free)

Posted on Jan 04, 2009

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Welcome to Fixya

First thing to check is the gas cap. Loose gas cap will cause the service light to lit up. Usually the car will run for about 100 miles or so before the light goes away, but you can also, reset the ECU by checking this site. Try pulling the fuses marked "Eng cont/inj, there is a 15A under the hood, in the fusebox near the battery, and a 10A in the driver-side interior fusebox - pull both.


Thank you for using Fixya!

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