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Mustang Forums
2011-2014 Mustangs
Engine/Tuning
Wastegated Paxton tuning
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<blockquote data-quote="TTUhouston" data-source="post: 16358503" data-attributes="member: 185096"><p>fuel filter cleaned and re-datalogged, still lean. Pulled out the injectors last night and bringing them to get cleaned/flow tested today. I checked that both fuel pumps are running and both are pulling 6 amps at idle. I will probably pull the fuel pumps out and clean the sock/make sure everything looks ok. </p><p></p><p>If all of this doesnt fix it I will be buying a fuel pressure gauge I can bring into the car somehow and possibly take off the FPR and inspect further? </p><p></p><p>The FPR is boost referenced and when I pull off vacuum line it goes from 55 to ~62 psi on the gauge but it is in engine bay so not much help at WOT while driving. </p><p></p><p>I looked over all the vacuum lines one more time, cant see any issues with any vacuum lines but with the boost gauge, vacuum block, and lines to intake there are quite a few connections. You can definitely feel the difference though when I pull the vacuum line off the FPR so that makes me think there isnt any vacuum issues. </p><p></p><p>Any other ideas?? Is it possible I found the limits of something (stock fuel rail?) with my new mods??</p></blockquote><p></p>
[QUOTE="TTUhouston, post: 16358503, member: 185096"] fuel filter cleaned and re-datalogged, still lean. Pulled out the injectors last night and bringing them to get cleaned/flow tested today. I checked that both fuel pumps are running and both are pulling 6 amps at idle. I will probably pull the fuel pumps out and clean the sock/make sure everything looks ok. If all of this doesnt fix it I will be buying a fuel pressure gauge I can bring into the car somehow and possibly take off the FPR and inspect further? The FPR is boost referenced and when I pull off vacuum line it goes from 55 to ~62 psi on the gauge but it is in engine bay so not much help at WOT while driving. I looked over all the vacuum lines one more time, cant see any issues with any vacuum lines but with the boost gauge, vacuum block, and lines to intake there are quite a few connections. You can definitely feel the difference though when I pull the vacuum line off the FPR so that makes me think there isnt any vacuum issues. Any other ideas?? Is it possible I found the limits of something (stock fuel rail?) with my new mods?? [/QUOTE]
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2011-2014 Mustangs
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Wastegated Paxton tuning
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