|
|
|
|
Thread Tools | Display Modes |
01-06-2006, 08:06 PM | #1 |
Scooby Specialist
Member#: 96773
Join Date: Sep 2005
Chapter/Region:
E. Canada
Location: GTA, Ontario Canada.
Vehicle:04 WRX, RIP GC8 Black |
What could cause a check engine light?
I drive a 99 Impreza 2.5 RS
I know that there are many things that could set off the light, but mine lit up tonight. I don't know what it could be, my car is driving the same as it did before the light, and fluids are all normal. The thing is, I have an exhaust leak, I can't see the leak itsself, but its clear exhaust is escaping from around the flange of the headers joining to the intermediate pipe. (I see it on cold days) I was curious could this cause the problem? or what else is common to set it off on my impreza at around 122,000 KM ?
* Registered users of the site do not see these ads.
|
01-06-2006, 08:20 PM | #2 |
Scooby Guru
Member#: 5851
Join Date: Apr 2001
Chapter/Region:
VIC
Location: Vancouver
Vehicle:17 Ford Escape SE Blk |
Cat innefficiency or soemthing of the like would be my guess. Leaky exhaust can definitely give you a CEL providing the leak is pre-O2 sensor.
|
01-06-2006, 08:38 PM | #3 |
Scooby Specialist
Member#: 96773
Join Date: Sep 2005
Chapter/Region:
E. Canada
Location: GTA, Ontario Canada.
Vehicle:04 WRX, RIP GC8 Black |
**** its already dark its killing me to see where the O2 sensor is. The leak is around the flange that joins the intermediate pipe, to the back of the second cat...
Any other opinions? is it safe to drive the car? will I screw things up worse? |
01-06-2006, 08:44 PM | #4 |
*** Banned ***
Member#: 82259
Join Date: Mar 2005
Chapter/Region:
BAIC
Location: koledge at csus
Vehicle:1999 impreza 2.2L Brilliant Red <4EAT Club> |
is teh CEL blinking? if its blinking dont drive, if its constant you should be ok to drive it. most likely bad o2 sensor or cat inefficiency. there are 2 o2 sensors in the exhaust, 1 before and 1 after the cat. take off the heat shields (assuming theyre still there) and you should see them fairly easily
|
01-06-2006, 08:45 PM | #5 |
Scooby Newbie
Member#: 52202
Join Date: Jan 2004
Chapter/Region:
MWSOC
Location: Dayton OH
Vehicle:2001 2.5RS |
Hit up autozone or someother place that will pull the code for free and post that code P-xxxx. Chances are its nothing major, but I wouldnt go along time without knowing what it is. The O2 sensor sits on top of the cat on the drivers side.
|
01-06-2006, 08:47 PM | #6 |
Scooby Specialist
Member#: 96773
Join Date: Sep 2005
Chapter/Region:
E. Canada
Location: GTA, Ontario Canada.
Vehicle:04 WRX, RIP GC8 Black |
Its not blinking. I will go to a place and get the code ASAP, but will I be okay to make a few miles on the car? (50 tops) ?
|
01-06-2006, 08:48 PM | #7 |
Scooby Specialist
Member#: 96773
Join Date: Sep 2005
Chapter/Region:
E. Canada
Location: GTA, Ontario Canada.
Vehicle:04 WRX, RIP GC8 Black |
oh and if its a "cat inefficiency" code, does that mean new cats? or is that fixed by replacing o2 sensors?
|
01-06-2006, 08:50 PM | #8 | |
*** Banned ***
Member#: 82259
Join Date: Mar 2005
Chapter/Region:
BAIC
Location: koledge at csus
Vehicle:1999 impreza 2.2L Brilliant Red <4EAT Club> |
Quote:
|
|
01-06-2006, 08:59 PM | #9 |
Scooby Specialist
Member#: 96773
Join Date: Sep 2005
Chapter/Region:
E. Canada
Location: GTA, Ontario Canada.
Vehicle:04 WRX, RIP GC8 Black |
I dont care about the cats because Im getting some cobbs soon enough, I just want to be sure it is that o2 sensor and not something worse.
|
01-06-2006, 09:18 PM | #10 |
Scooby Guru
Member#: 90347
Join Date: Jul 2005
Chapter/Region:
AKIC
Location: Anchorage AK
Vehicle:2013 BRZ & Imp 2.5RS Yamaha FZ8 |
could even be as simple as an evap issue in the fuel system... loose gas cap even.
|
01-06-2006, 09:38 PM | #11 |
Scooby Guru
Member#: 22664
Join Date: Aug 2002
Location: north nj
|
yea could just be the car acting up and winter gas..i know mine threw a cel one day for no reason (cat innefficency) i just reset the ecu and hasnt come back in many miles
|
01-07-2006, 12:28 AM | #12 |
Scooby Specialist
Member#: 91833
Join Date: Jul 2005
Chapter/Region:
MWSOC
Location: Indy/Purdue University
Vehicle:98 black RS-Sold Indy Forum's Kid |
|
01-07-2006, 01:20 AM | #13 |
Scooby Specialist
Member#: 96773
Join Date: Sep 2005
Chapter/Region:
E. Canada
Location: GTA, Ontario Canada.
Vehicle:04 WRX, RIP GC8 Black |
thanks for the code list. But I checked the gas cap its not it. My moneys on the sensors...
|
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
What Would Cause Check Engine Light | 06WRXMIKE | Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo) | 30 | 04-26-2009 10:38 PM |
Will a catback exhaust cause a Check Engine Light? | WRXakaBooSTi | Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) | 2 | 12-13-2004 02:17 AM |
what to do about check engine light | wrbsti2004 | Engine Management & Tuning | 6 | 09-15-2004 08:07 PM |
Can a check engine light be caused by bad spark plugs or bad plug wires? | pico | Newbies & FAQs | 7 | 06-27-2002 04:57 PM |