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Re: Need help with fuel pressure
New factory part number pump for 2003 avalanche second one. factory inline filter. return style on 03 avalanche. 3 different fpr all show 50lbs pressure. get lean codes for both sides every 5 or 6 hundred miles. put 4000 miles on it so far. unhook fuel pressure goes to 58lbs and stays. runs ok with fpr hooked up will backfire one time when you run it wfo then let off. whole fuel system is same as factory with new 3/8 fuel line. bought whole avalanche had been flipped but I drove it into garage dont know much else to tell
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