Today driving around i got a random misfire code P0300. I have since deleted the code and have driven around it has yet to come back on. Anyone know why this may have happened. Mods are 3" TBE with test pipe, GSC S1 Cams, Perrin Intake, Walboro 255 lph fuel pump, hallman pro set at 26 psi and was tuned by CBRD.

 

I have looked through the forums about what it could be just wanted some clarification. I pulled over right away and the car sounded fine no misfire that i could hear.

 

my car does the same thing i just clear it and move on i never noticed an actual misfire and it wasnt at wot

 

It is not a misfire. For some reason evos like to throw this code due to a small vibration. Easiest way to get rid of it popping up is flashing your ECU with ecuflash and eliminate the 0300 code. Check out the ECUflash forum on here, it has the answers on how to do it.

 

po 300 can be caused by stalling the car, a clutch, mechanical noise...

we can disable, but its definetly cause of concern!

cb

 

it really annoying.. i've been dealing with it for 1 and half now..... i think mine is my cams tho- 280 comp cams-

 

How long have you been on those spark plugs??

 

Check all the basics first (plugs, coil packs, etc). Then once you are satisfied then you can turn off P0300

Mine is set off by the horrible vibration my exhaust causes in 5th gear at a certain speed. Happens every single time. Braaack, CEL!

 

It can easily be disabled trough the periphery bits. Look up p0300 disable test. I disabled mine a while ago and have not had a problem since.

 

I have checked everything i just did a tune up before i drove it to virginia beach. The spark plugs have about 2,000 Miles on them. It has yet to come back on and i did some "spirited driving" yesterday.

 

It comes from the cams when first put in. When did you have them installed??

 

4/15/10

 

It is the Cams