IS - 2nd Gen (2006-2013) Discussion about the 2006+ model IS models

car back fires

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Old 05-29-12, 07:23 PM
  #16  
ibidu1
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Originally Posted by suicidesam
when i let off the throttle and cold



for what i only got 44k on the clock

A pop usually happens when theres un burnt fuel, it poorly ignites causing it to back fire. I would replace them, clean the throttle body, and air filter.
Old 05-29-12, 07:40 PM
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Kurtz
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Originally Posted by chi123
It's normal. I get about 100+ backfires just driving to and from school everyday lol. Especially if you delete the resonators and secondary cats, the backfires get really loud. One time, I downshifted under a tunnel and it backfired so loud, everyone's third brake lights came on lol.
Not sure I'd count it as normal if you have to remove half the exhaust to make it happen

4.5+ years of ownership and 0 backfires... but I also don't romp on it when the engine is cold.
Old 05-29-12, 07:58 PM
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mjh09e
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I romp on my car all day long lol and it backfires when I let off after 3500rpm....definitely a pressure issue from removing the resonator.
Old 05-29-12, 08:08 PM
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chi123
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My car only backfires when it's at operating temperature. Never can I get it to backfire when it's cold.
Old 05-29-12, 08:17 PM
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FNFZ4
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interesing....
Old 05-29-12, 08:18 PM
  #21  
ohiois350
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Originally Posted by chi123
My car only backfires when it's at operating temperature. Never can I get it to backfire when it's cold.
mine never got backfires when it in the cold, but it happen when I press hard or floor and then stop at the redlight and then got POP backfires, but it sound like I have a race car.
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