SubaruLegacy2003 Posted November 18, 2005 Share Posted November 18, 2005 CEL has gone on three times in the last 5 months. 1st time 5 months ago minutes after my wife fueled up. Figured it was the gas cap, had her re-attach and the code went away the next time the car was started. This past Tuesday, the CEL came on again, I had gotten gas a couple of days before, had about 90 miles on the tank, re-did the gas cap and the light went out the next time the car was started. CEL came on again yesterday, still the same tank of gas, last night I dropped the car off at an independent up the street. They scanned the computer and got: PO519 Undocumented Code so they cleared the computer and sent me on my way. Any thoughts or experience with the Undocumented code issue? I have an appointment with the dealer on Monday....any thoughts about buying a replacement gas cap beforehand and seeing if that takes care of the CEL? The independent seemed to think that if it was the cap, that was a code they should have and since they don't, it's probably an emissions issue. Link to comment Share on other sites More sharing options...
nipper Posted November 18, 2005 Share Posted November 18, 2005 maybe you need a gas cap? nipper Link to comment Share on other sites More sharing options...
friendly_jacek Posted November 22, 2005 Share Posted November 22, 2005 They use a crappy scanner. Software in my scanner (BR-3) defines this code as: P0519 Idle Air Control System Performance Someone needs to jump in and explain the next step in handling of this code, as I am no mechanic. This story confirms what I suspect: most mechanics these days can't think outside the ... scanner. Link to comment Share on other sites More sharing options...
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