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Unread 04-04-2009   #1 (permalink)
04KenneBellGT is offline MACH I Member

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Default PO316 and PO300 DTC codes.

I went to a car show at Lowes Motor Speedway today in Concord cuz a buddy of mine had a free ticket so I couldnt pass it up. Its a nice day so I drove my stang and on the way back my CEL came on. I get home and check it out with my old hand held tuner and it gives me two DTC codes....PO316 and PO300. The PO316 has come on before, maybe like twice since August and have been told its a missfire on startup. Also my car is sensative due to the tuning and work its had done to it to Ive always thought that is a big part of it cuz the cars runs like a scolded dog, def doesnt feel like there are any problems, I just dont like it when that light comes on. Also not positive on what PO300 is, havent looked it up yet but if anyone knows for sure then that would be great. Should I have this checked out now, or what could it possibly be trying to tell me? Any advice is much appreciated. Oh also saw the new 2010 Shelby and Roush 427R...very very slick looking.
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Unread 04-04-2009   #2 (permalink)
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Ford OBDII trouble codes - FordPower.net

P0300 Random Misfire Detected.

found the P0316 code here. http://www.obd-codes.com/forums/view...php?f=1&t=3257

P0316 is Engine Misfire Detected on Startup
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Unread 04-04-2009   #3 (permalink)
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I think this is the third time its gone off since August for the same code while everything sounds and runs just fine. Wonder why it keeps coming on every now and then, and what can I do to stop it?
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-08 Corvette Z06-B&B exhaust, K&N filter.

-12 Tacoma Prerunner
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Unread 04-04-2009   #4 (permalink)
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might be bad COP's or plugs.
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Unread 04-04-2009   #5 (permalink)
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Could be, but I had those plugs put on when the blower was installed in October of 07.
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-08 Corvette Z06-B&B exhaust, K&N filter.

-12 Tacoma Prerunner
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Unread 04-04-2009   #6 (permalink)
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Quote:
Originally Posted by 04KenneBellGT View Post
Could be, but I had those plugs put on when the blower was installed in October of 07.
yeah but that doesn't mean anything. coulda been a bad plug, or a faulty COP, you never know with these cars...they do funny things for no apparent or explained reasons.
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Unread 04-04-2009   #7 (permalink)
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Alright thanks for the help, I might have to check that out.
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-04 Mustang GT-Intercooled Kenne bell 2.1L supercharged @10psi, bolt ons, 3:73 gears, big brake upgrade, some suspension, 315's rear.

-08 Corvette Z06-B&B exhaust, K&N filter.

-12 Tacoma Prerunner
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