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Intermittent P0171 and P0174
Hello, Just pulled upper and lower intakes. Did the gaskets. Checked for vac leaks and found none. (1997 4.0) Typically I'll throw just a P0171 and not P0174 but the two have been coming on together lately. I have been using torque pro to attempt to monitor whats going on. I have cleaned the...- DangerRanger37
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- Replies: 6
- Forum: 4.0 Liter Forum