crxgames

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?

zakmartin

Year? Mileage? Mods?

iideadeyeii

iTrader: (6)

78,903

travlee

iTrader: (8)

is there an aftermarket intake?

zakmartin

Okay, you've given us one and now we're dripping wet with anticipation that you'll give up the rest of the requested info, since you're the one asking for help in the first place.

crxgames

No, he was not the one asking for help?

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.

crxgames

K&N cone filter on it.

MAF looks clean, cleaned it with cleaner anyway, MAF voltages check out.

travlee

iTrader: (8)

You need a tune

crxgames

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.