check engine light keeps turning on
11-23-2002, 11:17 AM
#1
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Location: CA-bay area
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Car Info: 00 impreza rs
check engine light keeps turning on
i already wasted a lot of money fixing the check engine light, but it still comes on. I took it to a subaru dealer when my machanic couldn't fix it and i kept on taking it there too and wasted more money. They fix everything, changing my gear ratio,replacing the o2 censor,replacing gas cap, and replacing hoses. What could be the problem with my '99rs? if anyone has an idea please help me out?
When it came on again i just reseted the ecu
When it came on again i just reseted the ecu
11-24-2002, 03:14 PM
#6
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As soon as mine starts that I'm pulling the damn bulb out. Its also another good reason to go with a standalone ECU setup.
-Wes
11-24-2002, 03:44 PM
#7
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Location: nasioc.com
Posts: 313
Car Info: 2000 RS Coupe/1990 Mazda Protege, zoom zoom..
Re: check engine light keeps turning on
Originally posted by my25rs
i already wasted a lot of money fixing the check engine light, but it still comes on. I took it to a subaru dealer when my machanic couldn't fix it and i kept on taking it there too and wasted more money. They fix everything, changing my gear ratio,replacing the o2 censor,replacing gas cap, and replacing hoses. What could be the problem with my '99rs? if anyone has an idea please help me out?
When it came on again i just reseted the ecu
i already wasted a lot of money fixing the check engine light, but it still comes on. I took it to a subaru dealer when my machanic couldn't fix it and i kept on taking it there too and wasted more money. They fix everything, changing my gear ratio,replacing the o2 censor,replacing gas cap, and replacing hoses. What could be the problem with my '99rs? if anyone has an idea please help me out?
When it came on again i just reseted the ecu
Jay
''Subaru Community Enthusiast"
12-01-2002, 10:05 AM
#8
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Join Date: Nov 2002
Location: Collegeville, Pa
Posts: 104
Car Info: 99' black Rs, not stock
Before I the recall I had that problem it would just come on and go off, it really pissed me off. Now with the new one my check engine light hasn't been on once. I also have a wepon r intake.
12-01-2002, 01:10 PM
#10
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Location: Lawrence, Kansas
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Car Info: 19' Impreza Sport Manual / 99 Miata / 13' OB
If it really is the rear and not front O2 sensor (code 420 is it?) then you can get a CEL fix to prevent the light from coming on. The rear sensor really isn't for engine management just an indication of Cat efficiency.
12-07-2002, 07:03 PM
#11
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thanks for all the help. i havent check the the forums for a while. How do i check the maf sensor, is it the same as o2 censor??
Can you tell me more information about CEL mod?
code is 420
the only mod i have is a intake
Can you tell me more information about CEL mod?
code is 420
the only mod i have is a intake
Last edited by my25rs; 12-07-2002 at 07:30 PM.
12-07-2002, 10:06 PM
#12
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The MAF sensor measures airflow in you intake, the O2 sensor measures your exhaust gas content. They aren't the same thing, but are both common problems. If it is a 420 code, then it is an o2 sensor problem. Like Peaty mentioned you can get a fix for it. It really isn't that big of a deal, your car I am sure is running fine, just not efficient as far as emissions are concerned.
-Wes
-Wes
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