Misfire code after install g3 intake
 

Has anybody had the p300 code when cold starting .
Fitted the g3 intake and a few weeks go by and now when I start and leave to warm up I get the random misfire code .
I want to find out before I take it to the stealership .
Oh I also got a new engine due to high oil consumption about 2months ago .
Anybody ? :icon14:

From my research on this P300 its that it has been found that the stock parameters to set this code are a little tight, meaning that a cold start can sometimes pull the P300 even though nothing is wrong. Could be as simple as now you are getting cold fresh air that the engine has a hard time combusting until it warms up a little.

I think a misfire can be due a vacuum leak in the intake. Have you checked all the fittings? Maybe one loosened up

Everything is tight .
Spoke to a bro back in the UK who built my r34 motor and said that the mafs are dirty due to stillen not cleaning the tubes after manufacturing them .
I.e bad quality control .
Dismantled and found he was right .
Will find out in the morning .
Thanks bro .:rofl2:

Makes you wonder what else the engine sucked in then :/

Well cleaned out the mafs and no code .
Spoke to my buddy again and he said that it shouldn't hurt the engine .
Pull the plugs to see if there is any fouling .
Did that and all is good .
Gona be calling stillen .
Kinda pissed .

Oh and checked the cylinders with boroscope and the crowns are fine .