P0300 random misfire

**NightMare** · 04-08-2011, 09:51 PM

Just Got this code. Just got my h/c/i installed a couple weeks ago and tuned and the car has been running great. I had been running two codes prior P0420 and P0430, but that was in the tune that was fixed the other day. Today the check engine light came for this one, any ideas? Tune? The car isnt sputtering, no difference in idle, accelerates fine, what could it be?

**HemiPowered5700** · 04-08-2011, 10:03 PM

Normal bud...nothing to worry about until you start seeing individual cylinder misfire codes....with a heads and cam setup, PO 300s are normal especially when it's colder outside.

**hemibeesteve** · 04-08-2011, 10:06 PM

It's a code that i think just about everyone has gotten with a H/C/I install. and even with just a cam install, I get the code every once in a while still. Just clear it with the predator and you should be fine.

**evilsrt8** · 04-08-2011, 10:15 PM

Lol I literally get that about 4-5 times a day, 7 days a week. Its because of the cam, nothing to worry about buddy

**Red Bull SRT8** · 04-08-2011, 10:19 PM

I got that code 1 day when i was out dogging the crap out of my car (having fun).
Cleared it and it hasn't come back yet. But I haven't drove the crap out of it again. Yet.

**NightMare** · 04-08-2011, 11:05 PM

Thanks all! I thought it was that...

**evilsrt8** · 04-08-2011, 11:33 PM

^^ Actually we all lied to make you feel better, that code means you blew a hole in your motor, your best bet is to just ship me your heads, cam, and block and call it a day.... :P

**NightMare** · 04-08-2011, 11:47 PM

lol dont forget the problem you had before your tune! Haahahaha, oh and yes ill ship my heads and cam..

.just ship your car without the wheels

**bipto** · 04-08-2011, 11:48 PM

Ya, the P0300's are no big deal. I see them occasionally and most times I wont even have to clear them because they'll reset after a few good trips...

**NightMare** · 04-09-2011, 12:04 AM

Thanks Bipto! I got nervous but I had a feeling...

**Jokersmokesem** · 04-09-2011, 03:36 AM

SperMax in it?

**NightMare** · 04-09-2011, 03:38 AM

Bad batch caused the random misfire.

**Jokersmokesem** · 04-09-2011, 03:40 AM

Originally Posted by NightMare

Bad batch caused the random misfire.

DNA test reveil......................... Muscleman's been here!!!!!!!!!!

illlllllllllllllllllllll!!!!!!!!!!!!!!!!!!!!!!

**MadCharger** · 04-09-2011, 07:07 AM

Have your tuner raise the threshold to 3k rpm, and that will keep it away for daily driving. I'll only get it now if I'm auto sticking and holding it above 3k for a while.