Car is throwing codes.

whyxitx · September 14th, 2011, 08:57 PM

SES light went on monday afternoon after normal driving.. i got these

P0172 and P0175, bank 1 and bank 2 are running rich.

My car seems like it's driving normal.. but when i reset the computer, the SES is still on. What do you guys think? 02 Sensors? the guy at Adv. Auto said fuel injectors..

Green_6er · September 14th, 2011, 09:09 PM

same acceleration? any different smells? etc?

whyxitx · September 14th, 2011, 09:34 PM

Pretty much

My cars felt uber slow since i put my new wheels and tires on though. That's just because they're a lot heavier then the stockers i think.

everything smells the same too..

Rich J · September 14th, 2011, 09:37 PM

Its always better to run rich than lean... But I have no idea what it could be. Sorry.

whyxitx · September 14th, 2011, 09:42 PM

thanks for the help, rich

lmao.

i've also heard vacuum leaks could be it too.. i'll have to go check it out.

Green_6er · September 14th, 2011, 09:57 PM

any of your friends have a 99-04 v6?

whyxitx · September 14th, 2011, 10:09 PM

by "friends" You mean kids at my school.. yes.

Green_6er · September 14th, 2011, 10:13 PM

pop their hood and take one of the O2's and swap it with your too see if it is your O2's.

whyxitx · September 14th, 2011, 10:15 PM

lol, they prolly wouldn't want me near the insides of their hood..

Green_6er · September 14th, 2011, 10:18 PM

just tell them to stfu and pop their hood

whyxitx · September 14th, 2011, 10:27 PM

i shall... lol.

whyxitx · September 21st, 2011, 12:06 AM

i'm smelling gas, and acceleration is piss awful.

spaseghost · September 21st, 2011, 04:03 AM

i would guess your cats are plugged. if you are crafty and want to experiment, drill a 3/8" hole all the way through your two rear cats and clean off your o2 sensors.

whyxitx · September 21st, 2011, 08:09 AM

never heard of drilling a hole through cats before,

but i'll give it a shot. and i'll do the o2 sensors as well just for the hell of it while i'm down there.

Rich J · September 21st, 2011, 08:15 AM

Definitely sounds like a clogged cat. Just get rid of them and be done with it.

XxstarspyXX · September 21st, 2011, 08:24 AM

My check fuel cap light came on after reading this thread and leaving to go to school....My caps on tight.... Somethings up lol

Rich J · September 21st, 2011, 08:30 AM

Your in the Northeast, around here (and places where winters can be harsh) the seal for the filler neck to the gas tank rots away.

WickedSnake00 · September 21st, 2011, 11:47 AM

Originally Posted by spaseghost

i would guess your cats are plugged. if you are crafty and want to experiment, drill a 3/8" hole all the way through your two rear cats and clean off your o2 sensors.

Vacuum leaks will make you run lean.
It could be injectors cycling more than they should, it could also be a bad HOS.

However a bad HOS could be caused by fouling due to excessive rich mixture, and this can also cause fouled cats.

Drilling out cats is a bad idea. They're expensive. Get an O/R pipe if you're concerned.

First thing I'd do is clean the HOS's and test them. Fouled cats may be a symptom of the problem, but they are not the problem. If it was just bad cats you'd get a catalyst efficiency code, not a rich code.

If the sensors are good and you continue to get rich codes, it could be injector related.

walt1120 · September 21st, 2011, 12:20 PM

You dont have an email tune right?

i had the same codes for half a year before i got a better tune. Did you try an replace your upstream o2 sensors?

i doubt on a stock tune you would be throwing this code unless theres something wrong with your o2's. A car running a stock tune should not throw a rich code if everything is running right.

How many miles are on your car? i would replace the o2 sensors before messing with the cats. Do the cheapest thing first...o2's usually go bad on these cars once you have 100k+ miles anyway.

whyxitx · September 21st, 2011, 07:00 PM

Originally Posted by WickedSnake00

Vacuum leaks will make you run lean.
It could be injectors cycling more than they should, it could also be a bad HOS.

However a bad HOS could be caused by fouling due to excessive rich mixture, and this can also cause fouled cats.

Drilling out cats is a bad idea. They're expensive. Get an O/R pipe if you're concerned.

First thing I'd do is clean the HOS's and test them. Fouled cats may be a symptom of the problem, but they are not the problem. If it was just bad cats you'd get a catalyst efficiency code, not a rich code.

If the sensors are good and you continue to get rich codes, it could be injector related.

we have no emissions here in nebraska, and i can pay for the cats to be removed i guess, whatever the hell makes my car run better

September 14th, 2011, 09:37 PM	#4
Rich J I'm doing it wrong 04 Grand Cherokee Join Date: Mar 2010 Location: South Eastern, Mass Posts: 5,211 iTrader: 0 reviews	Its always better to run rich than lean... But I have no idea what it could be. Sorry. __________________ Formerly known as Demon_54 "I feel the same way about disco as I do about herpes." - Hunter S. Thompson

September 21st, 2011, 04:03 AM	#13
spaseghost Regular It makes my wife horny 16.3@84@5kft Join Date: Apr 2007 Location: Grand Junction, Colorado Posts: 257 iTrader: 0 reviews	i would guess your cats are plugged. if you are crafty and want to experiment, drill a 3/8" hole all the way through your two rear cats and clean off your o2 sensors. __________________ 2003 Mustang - 3.8, 5spd., bbk, eibach no isos, duals, hids, 72k 1968 RS/SS Camaro - 350, .090 over, .500" lift, flows, M21 2004 Nissan Armada - HIDs, LEDs, sippy and DVDs 2002 F150 - Screw, 5.4l, GOTTS w/ K&N, flow super 44

September 21st, 2011, 08:15 AM	#15
Rich J I'm doing it wrong 04 Grand Cherokee Join Date: Mar 2010 Location: South Eastern, Mass Posts: 5,211 iTrader: 0 reviews	Definitely sounds like a clogged cat. Just get rid of them and be done with it. __________________ Formerly known as Demon_54 "I feel the same way about disco as I do about herpes." - Hunter S. Thompson

September 21st, 2011, 08:24 AM	#16
XxstarspyXX Regular 2002 V6 Join Date: Feb 2011 Location: Westchester, New York Posts: 457 iTrader: 0 reviews	My check fuel cap light came on after reading this thread and leaving to go to school....My caps on tight.... Somethings up lol __________________ Selling Chrome Black Saleens + Mustang GT4 Rims http://www.moddedmustangs.com/forums...al-pickup.html

September 21st, 2011, 08:30 AM	#17
Rich J I'm doing it wrong 04 Grand Cherokee Join Date: Mar 2010 Location: South Eastern, Mass Posts: 5,211 iTrader: 0 reviews	Your in the Northeast, around here (and places where winters can be harsh) the seal for the filler neck to the gas tank rots away. __________________ Formerly known as Demon_54 "I feel the same way about disco as I do about herpes." - Hunter S. Thompson

September 21st, 2011, 12:20 PM	#19
walt1120 Hardcore Enthusiast 04 Stang 1.0Gallon V6 14.45 @95.8 Join Date: Mar 2010 Location: South Jersey Posts: 2,130 iTrader: 2 reviews	You dont have an email tune right? i had the same codes for half a year before i got a better tune. Did you try an replace your upstream o2 sensors? i doubt on a stock tune you would be throwing this code unless theres something wrong with your o2's. A car running a stock tune should not throw a rich code if everything is running right. How many miles are on your car? i would replace the o2 sensors before messing with the cats. Do the cheapest thing first...o2's usually go bad on these cars once you have 100k+ miles anyway. __________________ 2004 Bolt on & Cammed 3.9L V6

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