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marley1187
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Post subject: 2008 Trailblazer SS Detonation  Posted: Tue Sep 06, 2011 4:41 pm |
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Joined: Wed May 12, 2010 1:52 pm
Posts: 8
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Is there any update for the K&N 91 tune on a 2008 Trailblazer SS. I have the k&n filter and a jba catback exhaust. I am getting a pinging sound like detonation at full throttle?
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RON @ SUPERCHIPS
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Post subject: Re: 2008 Trailblazer SS Detonation Posted: Wed Sep 07, 2011 8:02 am |
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Joined: Tue Jul 25, 2006 9:41 am
Posts: 18256
Location: SUPERCHIPS
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Which tuner do you have?
Ron
_________________ RRAPP@SUPERCHIPS.COM 1-888-227-2447 8-5 EST. Email me directly if your having ANY trouble with the forum. Not able to LOGIN, email me with your Username that you registered with.
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marley1187
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Post subject: Re: 2008 Trailblazer SS Detonation Posted: Wed Sep 07, 2011 9:24 am |
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Joined: Wed May 12, 2010 1:52 pm
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I have the 2865 and I downloaded the k&N tune when it first came out.
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RON @ SUPERCHIPS
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Post subject: Re: 2008 Trailblazer SS Detonation Posted: Wed Sep 07, 2011 12:34 pm |
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Joined: Tue Jul 25, 2006 9:41 am
Posts: 18256
Location: SUPERCHIPS
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Nothing has changed in the tuning.
When did the detonation start? After the exhaust?
How long have you had good service with the tune?
Any changes to the truck prior to this happening?
Ron
_________________ RRAPP@SUPERCHIPS.COM 1-888-227-2447 8-5 EST. Email me directly if your having ANY trouble with the forum. Not able to LOGIN, email me with your Username that you registered with.
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marley1187
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Post subject: Re: 2008 Trailblazer SS Detonation Posted: Wed Sep 07, 2011 1:30 pm |
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Joined: Wed May 12, 2010 1:52 pm
Posts: 8
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The exhaust was on before the tune and K&N. It has always ways done this since I installed the tune.
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RON @ SUPERCHIPS
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Post subject: Re: 2008 Trailblazer SS Detonation Posted: Wed Sep 07, 2011 2:33 pm |
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Joined: Tue Jul 25, 2006 9:41 am
Posts: 18256
Location: SUPERCHIPS
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How long have you had the tuning?
How long has the air filter been on the truck?
Have you ever washed the filter? Did you clean the MAF meter after cleaning?
Ron
_________________ RRAPP@SUPERCHIPS.COM 1-888-227-2447 8-5 EST. Email me directly if your having ANY trouble with the forum. Not able to LOGIN, email me with your Username that you registered with.
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marley1187
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Post subject: Re: 2008 Trailblazer SS Detonation Posted: Wed Sep 07, 2011 4:46 pm |
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Joined: Wed May 12, 2010 1:52 pm
Posts: 8
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I put the k&n on installed the tune. I put it on when the tune first came out. Nothing got on the maf and the filter is still clean so it never needed cleaning.
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RON @ SUPERCHIPS
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Post subject: Re: 2008 Trailblazer SS Detonation Posted: Thu Sep 08, 2011 8:02 am |
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Joined: Tue Jul 25, 2006 9:41 am
Posts: 18256
Location: SUPERCHIPS
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How long have you had the tuning?
How many miles are on the truck?
I would recommend to remove the CAI and put the stock back on, and test the tuning from there.
It is possible that the combo itself may be too much flow for the tuning.
Ron
_________________ RRAPP@SUPERCHIPS.COM 1-888-227-2447 8-5 EST. Email me directly if your having ANY trouble with the forum. Not able to LOGIN, email me with your Username that you registered with.
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