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MafiaAmor
11-18-2011, 06:02 AM
So my car is running perfect yesterday....I get in today the Service light is on just when I start up the car....

It shows no symptons and drives like it normally does....

Any ideas before I get the OBD scanner on it?
danewilson77
11-18-2011, 06:06 AM
Nope...need code.

I will guess...mmm.....P0171/P0174
MafiaAmor
11-18-2011, 06:13 AM
So a vacuum leak possibly.
MafiaAmor
11-18-2011, 06:24 AM
My guess was a popped sensor.
danewilson77
11-18-2011, 06:52 AM
Like a CPS? Your car would be running like ass if it was exhaust or intake CPS....

O2? Maybe....
MafiaAmor
11-18-2011, 06:53 AM
I was thinking an 02 sensor possibly too.

I mean, if your car is fine when you turn it off, then next morning turn it on and it pops on....I just figure maybe the startup popped something or burnt a sensor out....out I could just be an idiot and be in the totally wrong bus.
billschusteriv
11-18-2011, 08:43 AM
Maybe O2.

I had codes for a while. If one is going bad, it will pop and clear. Car will drive fine. Maybe slight change in fuel economy.
MafiaAmor
11-18-2011, 08:50 AM
So an 02 sensor isn't something I should be freaking out about?

I'm gonna get it fixed asap, I just was wondering if that were the problem, how long can it go like this.
llll1l1ll
11-18-2011, 10:31 AM
I'm guessing you have a cracked intake boot. Mine came on last week and it was and has been driving normally. I did not notice any difference in performance or general running after the light came on.

An old O2 sensor will give you crappy gas mileage and will make your car run bad after a long time.
MafiaAmor
11-21-2011, 08:40 AM
My car is having horrible gas mileage now....
danewilson77
11-21-2011, 08:48 AM
My car is having horrible gas mileage now....

Need codes. Even though light clears...codes should be stored.

HTC Thunderbolt+TT
MafiaAmor
11-21-2011, 08:57 AM
Kk, I'm going today on my lunch break, I was outta town this weekend once more before I thanksgiving.

But yeah I've noticed my car runs perfect, but I'm eating gas like crazy.

If it were an 02 sensor. They're only like 75-150?

http://www.bavauto.com/shop.asp?HC1=0&htarget=asgridyearmodel.asp&Hecode=undefined&hdept_id=5038&HCY=2002&HCM=325i

http://www.ecstuning.com/Search/11781742/

But I could be looking at wrong stuff.

Just trying to check on prices of 02 sensors just in case it is that problem, since my gas mileage is horrid and I hate even driving.
MafiaAmor
11-22-2011, 02:14 PM
Gosh I forgot the code but its like p0469 Air system bank 1 and bank 2....Arghh can't believe I forgot it.