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Running lean under boost

If you have the return kit you should be able to increase fuel pressure under boost ... if it was tuned correctly and started doing this you may have a

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Running lean under boost

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07-17-2018, 10:03 PM	#6 (permalink)
Jinxx Track Member Join Date: Dec 2015 Location: South Carolina Posts: 699 Drives: 2017 nismo 370z Rep Power: 3376	If you have the return kit you should be able to increase fuel pressure under boost ... if it was tuned correctly and started doing this you may have a vacuum leak on the fuel pressure regulator ... my fuel pressure at idle is 52 but I also have different injectors

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