jrob56

iTrader: (39)

The car seems to run fine most the time. It happened when I was waiting in line to get staged for the lap around the Indy Speedway on Sunday. The SES light kicked on. It kinda stumbled and ran rough pretty consistently at idle that day and the slowly became quite intermittent. It doesnt always do it but still does it some. To me it feels like it isnt as strong as it was too but it might just be in my head, my dad thinks it still pulls pretty hard. I have had the codes deleted, came back, and just did it again, so far still out. The codes are P0131 and P0170. Please tell me someone has had this happened and has a solution. I dont want to pay 80 just to have someone look at it...

keliente

iTrader: (22)

Bad driver's side front oxygen sensor causing the fuel trim code. Replace sensor.

jrob56

iTrader: (39)

u think, i just put new corvette ones in when i installed my headers less than a month ago...those arent cheap either...if it is im getting speed density tune and getting rid of the o2's all together. any other possibilities?

406malibu

ive heard a speed density tune will kill mpgs, but dont take that for fact since ive never done it.

jrob56

iTrader: (39)

i know a few people on it and it didnt hurt them that i am aware of, its on the to do list anyway. well i called autozone and they are replacing the o2 under warranty so illl switch it out and see what happens. its bank one so which sensor is that driver or passenger side, the guy at autozone said driver side just looking for a confirmation. thanks ill let u guys no how it goes...

keliente

iTrader: (22)

New headers have a tendency of fouling new oxygen sensors, it happened to me also. I would not go SD on this.

jrob56

iTrader: (39)

for the time being i am just replacing the o2 but they are used headers if that matters, i will hopefully go home tomorrow to switch them out

406malibu

its cause its burning off some of the chemicals of the fresh coating. but he did say they were used right below, so i doubt thats the reason.

jrob56

iTrader: (39)

haha ya i can see that, but any coating or anything inside that could mess with them is long gone lol. its been about a month too and then all of a sudden started messing up, im really hoping that the problem though!

redls1bird

iTrader: (1)

The O2 sensor is bad, causing both codes. I dont remember which side is which since im used to working on inline engines. Whichever side has the cylinder head closest to the front of the vehicle is bank 1.

Also, a speed density tune does not eliminate 02 sensors. It gets rid of the maf sensor. Running your engine without properly functioning O2 sensors can cause serious driveability issues as well as engine melt down if you happen to lose fuel pressure or somehow go very lean.

INMY01TA

iTrader: (1)

Why not just switch the two sensors and see if you get both codes on the other side?

jrob56

iTrader: (39)

i could but its under warranty why not just get a new one

update: on the way home to fix it this morning the light just went out on its own and it ran real smooth. i didnt know the light could just go out...but once i got back to campus today it started running rough but no light...so ill be replacing it this weekend, if that doesnt work idk...

nrs2420

iTrader: (2)

the light will go out if there are a certain number of key cycles without the problem.

jrob56

iTrader: (39)

k thats good to know but it came back on today, ill be changing it out no matter what tomorrow sometime