tylerjclance

iTrader: (7)

After reversing quite quickly early this evening I noticed a CEL.



I stopped.. Turned the car off for a moment, checked the gas cap. It's good.
Turned it back on.

I still have a CEL.

I do not have the code, so before you all start flaming me. WITHOUT THE CODE WE CANT HELP

I Understand that.
I will get the code read ASAP!

Car runs normally, sounds normal, pulls just as hard as before
Currently all that I have installed is Headers, Downpipe, Exhaust, and Intake, 93 gas.

Nothing new recently has been added or changed.


Here are a couple videos I took of the engine sound tonight, sounds a little strange in the first video but it goes away.


THen on the second video ,right before the rev it makes a strange noise..

Not sure if this is normal or not.. but I'm starting to get very paranoid..



any and all help will be greatly appreciated


YouTube - IMG_2140.MOV


YouTube - IMG_2141.MOV

RA040424

iTrader: (1)

Lol all the time going into shooting videos, uploading to youtube, then making a thread...

Why not go to an autozone (or a local equivelant) and just see what the damn code is <3


/PutsDownFlameThrower

redcobalt07

iTrader: (18)

what he said

RA040424

iTrader: (1)

With that said, I'm assuming your not tuned? If not a CEL is no surprise.

tylerjclance

iTrader: (7)

LOL
The german equivalent to an autozone...

hmmn


yeah. not tuned.. Yet.

but i never threw a cel after installing what I have.


(go gets fire extinguisher) I'll check my auto skills center

i'm about to buy this little guy
Amazon.com: Autel MaxiScan MS300 CAN OBD-II Scan Tool: Automotive

RA040424

iTrader: (1)

Has the temperature/air pressure changed were you are located?

tylerjclance

iTrader: (7)

the weather is constantly changing but
today's weather was the same as it has been for the past week.

nothing out of the ordinary, maybe a couple degrees warmer.


I'm thinking maybe the sensor on the DP came loose... I'll be able to check tomorrow or this weekend.

Chevycobaltss3

iTrader: (2)

when you get home keep me updated on your tuning situation bro. i can almost guarentee its a p0171 or p0172..... maybe even a p0420ish code

tylerjclance

iTrader: (7)

I won't be back to the states until 2013.
Maybe i'll end up buying hptuners in the future as well

What is P0171, p0172 and p0420

Chevycobaltss3

iTrader: (2)

p0171, p0172 are rich and lean codes, prob caused from the intake or the downpipe, and then the p0420 is a cat code, rear 02 effiecinecy

btw you should never orered the canned tune if you were gonna tune the car. Unless you dont care about spending extra money

tylerjclance

iTrader: (7)

hptuners won't be until october..

don't want to wait. LOL

Chevycobaltss3

iTrader: (2)

i woulda sent mine to you lol

tylerjclance

iTrader: (7)

aw lamee :p

CanadianCobalt

iTrader: (5)

The whole time I was reading this thread I figured this was going to come up. As high flow cats get older they can throw CEL's the same way if you don't have a cat.

Joel

tylerjclance

iTrader: (7)

I went to go get my code scanned yesterday.

The douche at the auto skills center plugs in the computer.. Clicks Clear codes.
After I repeatedly told him I just wanted the code.


CEL is off, and hasn't came back on yet..

olivecj

Trust me the code will return until you get the rear o2 sensor disabled when you get your car tuned. I had the same problem when I installed my highflow cat/downpipe. I t was good for about a week then the cel came on. Plus the tune will make your car run better overall and like others have said a canned tune for the lsj is not good you need a custom tune to dial everything in correctly and get a wideband as well.

05Slowline

iTrader: (2)

have you cleaned your tb too that's the first code i ever threw from **** that i didn't do lol

rukkee

iTrader: (3)

In the first video it almost sounds like the timing chain slaps around a few times ....especially at the very beginning . It might be time for a new tensioner if it hasn't been replaced with the newer revised one gm came out with.

The click right before you rev it.... might be the slack being taken up in the timing chain its self. Just an idea as im not an all knowing LSJ god 8)

tylerjclance

iTrader: (7)

i'll clean up the tb tomorrow and i'll check the tensioner
i have a new one from zzp but i'm not sure if that's the same thing.

a wideband is next on my list of things to buy, that and an interceptor to further monitor my car.

install is tomorrow for the rest of my parts!

sjc0013

iTrader: (6)

I just threw a p0420 yesterday, installed a different dp with high flow cat about 2 months ago, do you think this is what it is? If so do I have anything to worry about?

tylerjclance

iTrader: (7)

It was my 02 sensor, the dp threw the code.
the tune cleared it

myfakeevo

30 minutes of video and banter <20 seconds with a scanner

rukkee

iTrader: (3)

Yep.... P0420 is Catalyst System Efficiency Below Threshold. It's nothing to worry about . It doesn't control anything that would effect performance ..... it's basically a Cat converter baby sitter. As your new Hi flow cat gets more and more miles on it ....the code might go away on its own .

If your sick of looking at the light in the dash ..... disconnect your battery for few minutes and it will clear it ....... maybe it will take a couple of months to come back again.

sjc0013

iTrader: (6)

Good to know, thanks for the info, i appreciate it