Thread: Another code P0171 and P0174 thread (3.0) - ugh!
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Old 09-29-2018, 09:38 PM
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Looks like the lower CCV hose. It can be done without removing the intake manifold but it is like doing it with 1 eye closed. Also check your MAF readings as well, they should be in the 3 to 4 grams/sec readings with AC, radio and headlights OFF.
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