Rough Idle??

The G-Series Tuning Forum is the place to discuss G35/G37 performance modifications and mechanical repair.
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504G
Posts: 56
Joined: Sat Dec 29, 2007 10:45 pm
Car: 2003 G 35 Coupe

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What would make me have a rougher idle than normal from a initial start?? And rough means my RPM needle is a little bit higher than normal. Im assuming it is the spark plugs need to be replaced. Any suggestion?

P.S. I can wait for a reply LOL


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infinitgkid
Posts: 1531
Joined: Thu Jun 21, 2007 9:21 am
Car: '06 Infiniti G35 Coupe
Location: Greenville, SC

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ok well, I have to ask you two questions:

What do you mean by "higher than normal"?

And, do the RPM's eventually drop after a while?

groundrocket
Posts: 59
Joined: Sat Mar 08, 2008 8:42 pm
Car: 03 G35, 97 Nissan Pickup, 67 Mustang, 66 Ranchero, 78 Spyder, 94 CBR900RR

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could be numerous things - how many miles on the G? Any changes in fuel you have been using? from a recent thread it sounded like the general consensus was to check / replace the plugs somewhere around 60k miles.

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504G
Posts: 56
Joined: Sat Dec 29, 2007 10:45 pm
Car: 2003 G 35 Coupe

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88K on the G...Always use EXXON Plus or Supreme...The RPM's do drop back down but Higher meaning about 1200 RPM....

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Sentientbydesign
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Higher idle at startup is normal from my experience.

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504G
Posts: 56
Joined: Sat Dec 29, 2007 10:45 pm
Car: 2003 G 35 Coupe

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Ok because next week I plan on doing a Power Steering Flush, Coolant Flush, Fuel Induction Service, and transmission Flush, and Spark Plugs!!!! So hopefully I will be back up and running without any problems. Ill keep you guys posted on my results!


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