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Author Topic: Occasional backfire at WOT, throws no codes.  (Read 5361 times)
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06RockHead
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« on: February 25, 2013, 09:21:18 PM »
So occasionally after cruising when I open the car up at a stop light it will back fire going 1st - 2nd or from a roll 2nd - 3rd. It hasn't  thrown a code or any light, and I've checked most things. Some insight and assistance would be great.
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NVA-AV6
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« Reply #1 on: February 25, 2013, 09:25:41 PM »
Which engine, trans, mods?Huh??
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06RockHead
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« Reply #2 on: February 25, 2013, 09:28:23 PM »
J30A5, no mods except intake resonator delete and drop in k&n, with NGK iridium plugs. And it's 5 A / T
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06RockHead
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« Reply #3 on: February 25, 2013, 09:28:56 PM »
That was my bad I should have listed that right away
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NVA-AV6
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« Reply #4 on: February 26, 2013, 05:22:02 AM »
How many miles on the engine?
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06RockHead
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« Reply #5 on: February 26, 2013, 11:44:12 AM »
89k so not to many
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« Reply #6 on: February 26, 2013, 10:11:05 PM »
Humm, how has fuel economy been lately, noticed any dramatic loos of effiency? A exhaust backfire is usually caused by bad timing, but that would throw a cel, bad injector squirting mad fuel to wher it detonates hitting the cat, or a bad exhaust valve.
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06RockHead
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« Reply #7 on: February 26, 2013, 10:24:43 PM »
Fuel economy is great. If I'm not in it all the time and the car defiantly runs the way it should. And I'll throw you a loop the sound comes from the intake. . .
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