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Old 11-30-2005, 04:31 PM   #1
rallyken
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Default Check Engine Light?!

Hello fellow subaru enthusiats its been a while since i last posted i have been busy with school but i have a question and hopefully you can help. I drove from home to school about 350 miles and made it here no problem and the other day i went to take a drive and turned on the ignition and BAM there it was check engine light. I live in a pretty cold area and have a BOV i was wondering if this could have something to do with it. I am also due for an oil change. I wanted to know if there was any way of doing a diagnostic on this by the reading CEL codes or anything. Should i just take it to the local mechanic and get an oil change and have him check it out for me?
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Old 11-30-2005, 04:37 PM   #2
Mulder
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Go to any Autozone where they will read the code for free. Be sure to get the exact code or codes in Pxxxx format. You can then search the forums for that code, chances are it's one of the common ones that has been well documented. There is a CEL thread right at the top of this forum, and you can also look through the powertrain forums. In the event you don't find what you need you can then post the code(s) here along with any other pertinent information and we can probably help you.
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Old 11-30-2005, 05:47 PM   #3
rallyken
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OK i went to the local auto place like autozone and they read the code and this is what came up P0171 System Too lean (bank1) P1130 Manfacturer Contrl. Fuel Air metering No faults detected DTC pending codes. So basically im running to lean i guess which is wierd because i have a BOV and would think i would run rich. Is there anything i can do that you know of whats the deal. The guy offered to reset it and see what happens but i declined because i have a flashed ecu and did not know if it would be affected by this.
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Old 11-30-2005, 06:32 PM   #4
Jon [in CT]
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Address the P1130 code first - "Front oxygen sensor circuit malfunction (open circuit)." Although you don't live in Queens, per se, you might want to register at http://www.sqc-ny.com/ and see whether anyone local can take a look at your front A/F sensor wiring.
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Old 11-30-2005, 06:52 PM   #5
Mulder
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Jon is correct, if the front 02/AF sensor is malfunctioning it may be in turn causing the lean condition. You either have a bad sensor or damaged wiring, possibly from contact with the exhaust or damage that occurred during an install if any work was done in that area.
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Old 11-30-2005, 08:13 PM   #6
rallyken
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im guessing its the sensor then because i dont belive work has been sone in that area maybe uppipe but that was ages ago. Im guessing maybe my sensor is bad. Why isnt there anyone in the middle of nowhere alfred that can help me lol. I am a part of sqc but not in the city ill be home in about 3 weeks is there any consequeces of driving around with this lean condition or anything bad like that.
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Old 11-30-2005, 08:35 PM   #7
Mulder
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It would be best to address this as soon as possible. Driving with improper A/F, especially on the lean side, makes detonation more likely and if the problem is severe enough it may be outside of the range where the ECU can correct for it. This could lead to engine damage.
If you must continue driving it in this condition be sure to take it easy and lay off the boost.
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Old 12-01-2005, 03:31 PM   #8
rallyken
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Hey could this condition be being cuased by clogged fuel injectors the former owner aka my dad informed me that when it was very cold he would smell gas in th car sometimes and i have recently had this same issue and i am in a very cold enviroment and he said he took it to the dealer and they said the injectors were clogged so they ran a chemical in the system and the odor was gone. if the injectors were clogged couldnt this cause a lean mixutre.
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Old 12-01-2005, 07:02 PM   #9
Mulder
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Cold weather fuel smell in an 02? Read this-
http://forums.nasioc.com/forums/showthread.php?t=131755
Probably has nothing to do with clogged injectors. Did the dealer charge for that service? Fuel system treatments are something that dealers are know for pushing, it makes them money and is almost always 100% unnecessary.
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Old 12-01-2005, 09:24 PM   #10
rallyken
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the old mechanic at subaru did it for free yippee but he no longer works there he also replaced my turbo when it blew damn i wish he was still around. Thanks alot for your input mulder.
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