Random Misfire 0300: Dealership reflash available...

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Oct 28, 2007 | 11:49 AM

#571

KazzEvo8

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From: Illinois

Quote:

Originally Posted by mitsuorder

I have 107k miles on my car. Just did the clutch at 105k. I have literally up until the day after the clutch install thrown the p0300 code once in all of my miles. I replaced the clutch with the exact same one as I did before with the only difference being that I used a full weight stock flywheel this time around instead of my previous lightened stocker. New transmission is simply not an option right now and I have no chance in hell to have anything warrantied. I am going to attempt to disconnect the drive shaft from it's mid point rotate it, and then reconnect it. Reason being is that I did not, for some unknown reason to me, mark the position of the shaft at that point when removing it and believe that it being out of orientation may be causing it to be out of balance, causing the resonance.

Opinions on my theory?

Josh

Opinion? No. Intrigued at your results? Hell yes!

Nov 8, 2007 | 12:57 AM

#572

Evo_SpeedKing

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From: Colorado

so let me ask you this...how tight do you turn your gas cap? it might sound stupid and be just a coincidence, but i kept noticing i would get the P300 towards the bottom of my tank of fuel and i never cranked on the gas cap. once i started really clicking it, no p300 for months, then this last tank i forgot to tighten it and BAM guess what came back today?
i'm at the end of my tank, my walbro is whining and it happened after i was in 5th, wot and had to get off the gas and back on real quick to avoid some jacka$$ coming into my lane.
what do you think? coincidence?

Mar 24, 2012 | 08:56 AM

#573

skaterdude888

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From: Franklin, MA

Does anyone know if you can read the codes that the TSB needs you to read using ECUFlash? Can it be reflashed using this program? anyone have any luck on it?

Mar 24, 2012 | 10:24 AM

#574

gsrboi80

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From: On a cliff

Quote:

Originally Posted by skaterdude888

Does anyone know if you can read the codes that the TSB needs you to read using ECUFlash? Can it be reflashed using this program? anyone have any luck on it?

Evoscan or Scan Tech OBDII can pull the codes. Or any simple OBDII handheld

Mar 24, 2012 | 06:46 PM

#575

yellaevo

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Joined: Jul 2011

Posts: 34

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From: Mililani, Hawaii

Is this for all years or no? How much if you aren't under warranty??

Mar 24, 2012 | 06:54 PM

#576

mt057

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From: DFW

Back from the dead...

We now have a p0300 disable that any tuner can flash to your ecu. This seems to plague the Evo 8 more than the Evo 9

Mar 24, 2012 | 10:18 PM

#577

barneyb

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Joined: Jun 2006

Posts: 6,902

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From: Grand Island, NE

I'm not going to read all through this thread to see what people found the success of the reflash was. I've had it and the bottom line is that the reflash offered by the dealer does not work. Do as in the post above.