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#1
04-18-2008, 06:09 PM
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Back-fire 1988
Hi, my 1988 Nissan v6 backfires a lot around 1500 rpms! I check for any intake leaks, and I can't find any, and I have no clue were the "air diverter valve" is located. It isn't a loud backfire, just a pop noise that is noticeable. I have an oversized K&N in it as well. Please help!
Alex It's more an annoyance than a performance issue (imagine a viper driving down the road, and it back fires. It's humiliating) 
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#2
07-04-2008, 03:55 PM
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Re: Back-fire 1988
Hi Alex,
Check under the emissions for the air induction value for the truck. Check the operation of the AB (anti-backfire) valve. Check the air induction filter, a badly clogged valve can cause the same issue. Tom
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