Engine

The Gas and Diesel Engines - VQ40De, VK56DE, YD25DDTi, V9X, Transmission, Transfer Case, Oil, Differentials, Axles, Exhaust...

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Gn22
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Engine

Postby Gn22 » Wed Dec 18, 2013 11:38 am

2008 Nissan Pathfinder engine pinging should I use one step colder spark plug or what thank you


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disallow
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Postby disallow » Wed Dec 18, 2013 12:04 pm

any codes? what kind of fuel are you using?

Gn22
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Postby Gn22 » Wed Dec 18, 2013 12:08 pm

No code, 93 octane it's a v6
Thank you[/quote]

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disallow
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Postby disallow » Wed Dec 18, 2013 3:27 pm

I would change fuel suppliers and see if that solves your problem.

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smj999smj
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Postby smj999smj » Wed Dec 18, 2013 5:36 pm

I wonder if a cam sensor might be starting to "go south." It shouldn't ping on 93 octane. Timing is controlled by the computer, so there's no manual adjustment that could be off. Excessive carbon on the piston tops can increase compression and cause pinging, but I've yet to see that on a VQ engine. I would agree with the other poster and try getting your fuel from another source and see what happens.

Gn22
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Postby Gn22 » Wed Dec 18, 2013 8:11 pm

thank you I will try that


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