Engine Ping - Nissan Murano Forum
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#1 Old 12-24-2012, 05:01 AM
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Engine Ping

Hi All,

I'm new on the site and would really appreciate your advice on the under mentioned.

1. When I accelerate in a normal manner and the car shifts to high gear at low speed the motor pings. This only happens when the engine is at operating temperature. How is this possible with a VVT motor?

2. Can I take out all the CAT Converters and replace it with a straight pipe?
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#2 Old 12-24-2012, 10:30 AM
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Originally Posted by Maverick View Post
Hi All,

I'm new on the site and would really appreciate your advice on the under mentioned.

1. When I accelerate in a normal manner and the car shifts to high gear at low speed the motor pings. This only happens when the engine is at operating temperature. How is this possible with a VVT motor?

2. Can I take out all the CAT Converters and replace it with a straight pipe?
Are you using 87 octane fuel?
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#3 Old 12-24-2012, 02:07 PM
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Need more info. Depending on the year Murano, you may need to be using premium fuel.

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#4 Old 12-24-2012, 03:28 PM
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I drive the 2007 model and the octane is 95.
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#5 Old 12-24-2012, 03:40 PM
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95? where are you from?

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#6 Old 12-25-2012, 09:56 AM
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I live in Namibia, Africa. Northwest of South Africa, underneath Angola. Why?
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#7 Old 12-25-2012, 10:16 AM
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i think you should be using 87 octane. 95 octane is not needed aint it?


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#8 Old 12-25-2012, 01:59 PM
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The lowest octane fuel we get here is 93. Are you saying that the octane is too high?
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#9 Old 12-25-2012, 06:08 PM
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High octane will not cause ping, and my 07 will run fine on 87 octane. Cars simply do not use octane higher than that which they require.

However, a problem with the engine (such as deposits on the pistons) coupled with a faulty knock sensor can allow ping to occur. I'm wondering if something is causing the engine to ping and a faulty knock sensor is making the engine unable to adjust its timing to compensate.

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