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Discussion Starter · #1 ·
i just gave my car a tune up and it runs a lot better but it stills fell sluggish. when i go WOT the check engine light comes on and after about 500 feet it will turn back off. any suggestions on what it could be?
 

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do you have cats? one of the mustangs i had did that. it started getting really bad gas mileage and was really really sluggish. it felt like it lost all its power. it turned out to be the catalytic converters were clogged really bad. i got new cats and it was like a brand new car.
 

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hmm. idk. when they fixed mine they also reflashed the computer. you could try that. i know that if your computer goes bad then it will affect your cars performance a lot. have you had any change in gas mileage?
 

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Discussion Starter · #5 ·
yea, i am getting better gas miliage. i took it to my buddy's shop today and we scanned it and it said that it was running lean on the first and second banks. could that be from the injecters not getting fuel from being clogged or a fuel filter.
 

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where is a good place to purchase the O2 sensors?
 
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