Car running lean, backfiring out intake, breaking up. Any ideas?
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Car running lean, backfiring out intake, breaking up. Any ideas?
I have replaced my camshaft position sensors, checked my maf voltages (and cleaned it), checked for vacuum leaks, and verified o2 sensors are good on a snap on sonus scanner. There's no codes being thrown outside of periodically maybe having a p0300 multiple cylinder misfire code.
As you can see in the video, it's breaking up, backfiring out intake, and all kinds of wonky. Anyone have any ideas what else I should look at when I get home from work today?
As you can see in the video, it's breaking up, backfiring out intake, and all kinds of wonky. Anyone have any ideas what else I should look at when I get home from work today?
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Year? Mileage? Mods?
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The car is a 2003 vq35de with a motordyne intake plenum spacer, nwp throttle body, and motordyne tdx2 shockwave exhaust. Nothing else done to it and it's got about 25k miles on these mods without issue.
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I'm not denying you may be right, but a car that's been driven 25k miles unchanged doesn't just stop doing it because it all of the sudden needed a tune. The issues would've been there from the start.
My fuel pump was definitely dying. Replaced that tonight and it is now a blatant misfire issue. Definitely a dying coil pack.
My fuel pump was definitely dying. Replaced that tonight and it is now a blatant misfire issue. Definitely a dying coil pack.
Last edited by crxgames; 08-30-2017 at 05:35 PM.