check engine light on

[drupason]

alright im throwing some codes, anybody know what is causing and how to fix em?
P0300-random/multiple cylinder misfire detected
P0301- Cyl 1 misfire
P0302- Cyl 3 misfire
P0303- Cyl 4 misfire
P0172- System too rich(bank 1) Probaby caused by the misfiring cyl

??

[4dmin]

have you changed anything in the car's motor?

[Deaf Pimp]

Coil packs? Seem to be a common problem with 1.8t motors.

[gtikid]

Coil packs? Seem to be a common problem with 1.8t motors.

:werd: I was thinking the same thing. I've read it on Vortex

[drupason]

ive just done intake and dv

[BTEC]

what kinda intake is it? Newer cars dnt take mods well at all. coil packs would cause a rich conditions and misfire but i would think the intake woudl be freaking the mass air flow sensor out causing it to put more fuel than programmed casuing ecu to freak out.

[drupason]

if i just reset the codes and clear the check engine light id be able to pass emissions right? i neeeed to get my tags! haha

[4dmin]

intake = air mass ;)

[BTEC]

if i just reset the codes and clear the check engine light id be able to pass emissions right? i neeeed to get my tags! haha
NO!! When u clear ur codes/reset ur check engine light/disconnect ur battery it resets all ur monitors. Ur ecu will have to go through all these different emissions system checks b4 u can get tested or theyll tell ur monitors arent ready to be tested. When u get ur codes cleared ur gonna have to drive the car for a while so it can go through various drive cycle which is when it (ur ecu) performs all these tests.

[IntegraXTR]

NO!! When u clear ur codes/reset ur check engine light/disconnect ur battery it resets all ur monitors. Ur ecu will have to go through all these different emissions system checks b4 u can get tested or theyll tell ur monitors arent ready to be tested. When u get ur codes cleared ur gonna have to drive the car for a while so it can go through various drive cycle which is when it (ur ecu) performs all these tests.

yeh, if its obd2 then once you reset the check light, you will have to drive for 100 miles before the ecu is in ready mode, if you reset it and try to take emissions right away you will not be able to because once they plug it up it will not start because the ecu is not ready.

[drupason]

NO!! When u clear ur codes/reset ur check engine light/disconnect ur battery it resets all ur monitors. Ur ecu will have to go through all these different emissions system checks b4 u can get tested or theyll tell ur monitors arent ready to be tested. When u get ur codes cleared ur gonna have to drive the car for a while so it can go through various drive cycle which is when it (ur ecu) performs all these tests.
too late! haha i did it thursday...ive gone over 100 miles and no light yet you think i should give it a shot

[drupason]

ok about 170 miles and still no check engine light you think im clear to try emissions again? i neeed to get my tags

[BTEC]

ok about 170 miles and still no check engine light you think im clear to try emissions again? i neeed to get my tags
go for it.

[drupason]

go for it.
alright! if i fail again you owe me 20 dollas! haha just playin

[BTEC]

alright! if i fail again you owe me 20 dollas! haha just playin
i charge $100 for internet tech support so just pay pal me $80 if u fail.

[drupason]

dammmmmit! alright haha im gonna do it in the mornin so we shall see