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Need input on codes

Maintenance Service Interval questions, oil change info.

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06-25-2006, 02:28 AM	#1
vix_98_318ti Member Join Date: Dec 2003 Location: Los Angeles, SoCal Posts: 77 iTrader: (0) Photo Gallery	Need input on codes Hey Forum! I need some help here, I have a auot/98ti and I've been getting VERY, VERY bad MPG. I am going to guess about 15 mpg! (city-if that). I recently replaced the all spark plugs (4+ Platinum), oil change not too long ago, tires are in good shape, air filter is good shape, and car appears to run no major noticeable problems. In the last week or so I have cleared the following codes: 1. 0A - PreCat O2 2. 28 - Cat efficiency (CEL on) 3. 1b - Fuel Trim QL additive Anybody have any ideas what could be my problem? It seems everytime I clear the codes, I get a new one. I know something is killing my gas consumption and mostlikely related to one of the culprids above! Any good ideas to try or look for would be greatly appreciated! I need to improve those MPG back to 25-30 mpg! So much for having a 4-cyl efficient car! thanks ppl

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