Check engine light on.
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Joined: Jun 2010
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Check engine light on.
Hello everyone, new to the forum. I have a 02 explorer sport. CEL came on, took it to autozone to check it. Came up with codes po171 & PO174,system too lean banks 1&2. Also fuel injector problem. They had me use some injector cleaner and drove it 50-60 miles. I then cleared the codes by unhooking the battery. I drove the car for about 15-20 miles and the check light came on again. Went back to autozone, came up with just the 171&174 codes. they had me try MAF sensor cleaner. Drove it a few miles and light is back on. I have to get it inspected soon for new tabs. Can somebody please help me out?
Logistics Pro
Joined: Jun 2009
Posts: 4,819
Likes: 83
From: Cedar Rapids, IA
Welcome to the forum. These codes have been addressed quite a few times on this forum. As a new member, I'm going to suggest you try out the "Search this forum" feature for keyword "P0171". I think you'll find several suggestions on areas to check for issues. You'll probably also notice several threads that reference this code, which is why I'm not eager to populate yet another one.
-Rod
-Rod
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