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Message: [QUOTE="golfer, post: 207154, member: 266"] requested pulsewidth wouldn't have any bearing on neither an o-ring nor poppet valve issue...and since the injs are only 160cc's...if the injector was 'empty' in 3-3.5ms...no more oil would be used by requesting 5ms or 10ms...once the injector is empty..it's empty. I don't think any determination to boost vs. backpressure can be made since we're viewing "boost" through the MAP sensor... also, does this truck have a boost fooler/regulator on the map line? if you're seeing 30psi on a mechanical boost gauge that would equate to 45psi on the Manifold (absolute) sensor reading...which isn't out of whack (for a smallish/stock? turbo). the lack of ICP pressure (2113psi @ full PW) and max IPR % tells the tale... it's either a weak HPOP or leaking injectors..the (relatively) high 45% IPR duty cycle indicates that the tuning is [B]requesting[/B] more pressure...but it can't REACH the desired pressure (due to the above listed potential, pump or inj issues)..ie, the injs are 'using' more oil than the pump can supply. [/QUOTE]

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