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The dreaded P1174 and P1171
2004 SE7 Disco 2 147xxx Full rebuild I have had intermittent 1174 and 1171 codes pop up. They usually pop up after I hit the highway. Never city driving. I have replaced the MAF. Air filter. Air box. I have done an intake smoke test. No leaks. I did a sea foam treatment the other day and...- James Hicks
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- Forum: Discovery
