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Old 01-22-2013, 10:04 AM   #11
SamDoe1
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Join Date: Oct 2010
Location: Minnesnowta
Posts: 3,271
My Ride: Clubs baby seals
System too lean means you're either not delivering adequate fuel pressure/volume or you are getting unmetered air in your engine. The options are to check your intake boot, DISA o-ring, and intake air temp sensor o-ring for damage and to replace your fuel filter and pump. If these don't solve your problems, then look into more expensive solutions like a faulty MAF sensor or faulty fuel injectors (unlikely because it's the entire engine).

My money is on the fuel filter and pump. A broken intake boot doesn't come and go like this and will throw a code fairly quick.

Also, I'm guessing the code you read today will be the same as before.

Last edited by SamDoe1; 01-22-2013 at 10:06 AM.
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