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Power Strokes
7.3 Aftermarket
00 Excursion 7.3 P1670 only Help!
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[QUOTE="Arnoldb.1, post: 1536388, member: 30179"] Yeah, I found only one very small leak. I don’t think the issue isn’t the turbo not spooling, I think this soft code 1670 is over fueling the truck. Example I took the wastegate spring off and hung the wastegate wide open and it still made 28psi was a Smokey hot mess doing it but it did it with the gate wide open. Also the less preload on the wastegate spring the better the turbo spools. When I first did the injectors first of the year with 1”7/8” preload on the wastegate spring it would almost instantly hit 27psi and max boost at WOT 44psi and stay under 1200egt, now if I tried to preload it that tight it will bog the turbo down and sit around 8psi then jump up to 27psi at the top of the rpm. [/QUOTE]
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