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Old Jul 1, 2013 | 12:20 PM
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Bill'sWS6's Avatar
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Default BackFire Question

I am not really sure what I have going on. It just started a few weeks ago and doesn't happen very often. Not sure if it is a backfire or a back pressure pop. Only does it when idling and only does it one pop at a time. You may get more than one pop but they never happen in a row. One will happen then maybe 30 seconds, a minute or two then one more.

I did put a smaller exhaust plate in the Borla adjustable system. I did that a few months ago.

I am selling the car in the near future. I will not sell the car unless I am comfortable in knowing the car is in perfect running order so I want to get this issue solved.

So, any thoughts on if this is more likely just a back pressure pop because of the smaller exhaust plate or what else it could be. If you think it could be something else, what would you suggest I look at?

Thanks for your help.
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Old Jul 2, 2013 | 08:32 AM
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I think they are around $16, but I would try a crank position sensor....sometimes before they go they can do funny things just like this.
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Old Jul 4, 2013 | 11:03 PM
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Originally Posted by mark21742
I think they are around $16, but I would try a crank position sensor....sometimes before they go they can do funny things just like this.
Thanks for your input. I will look into that possibility. It happens only once in a great while and the car runs great other than that so it is just baffling to me.

I was told the muffler could also be going bad.
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Old Jul 4, 2013 | 11:32 PM
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Check to see if there's any misfire codes.
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Old Jul 7, 2013 | 09:13 PM
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Originally Posted by RedHotG8
Check to see if there's any misfire codes.
Good Thought.....I will scan it. It hasn't thrown any codes.

Thanks.
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