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09-06-2021, 02:38 PM
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Registered User
Join Date: Sep 2009
Location: east tennessee
Posts: 158
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Need help with fuel pressure
53 3100 5.3 0ut of 2003 avalanche. 50 lbs fuel pressure with 3 diffrent fpr. get lean codes lt fuel trims stay maxed out 25%. Last fpr today 5olbs goes to 40s with more throttle unhook vacuum line goes to 58 lbs .Will it hurt to plug vacuum line and run it?????
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