p0300..

took all plugs off and checked coil packs first time they were loose to tighter them up all good and all and code went off. well yesterday code came back on so i took injectors off made sure they were alll plugged in right and what not and putted them back on car and all but code is still on. cylinder missfire blah blah p0300. so what could it be? the tune? what else should o try/look at? anyhelp will be apreciated thanks

 

bad coil pack or bad gas...

 

how do i test the coil pack? gas ill make sure to use it all and refill.. anything else?

 

its a misfire. No way to diagnose it just from the code.

Can you feel it running rough?

 

not really its runs fine. i get on it and all good. boosting correct. idles fine. but the code still there

 

you need to know what cylinder(s) cause your misfires. cant really do that without some sort of data logging (hptuners, TECH 2, Interceptor, etc)

 

ill take it to my friend to use the tech 2 or hptuners then. thx

 

Mine was tune related; was due to the pulse adders not being a nice curve and adders going too high.

I'll take a log of your car and check for misfires on Wednesday.

 

sounds good homie thx

 

I used to get this code from being really lean also

 

oh okay ill keep that on the look out. cleaned maf sensor today and tb hopefully it does not come on again