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SVTPerformance's Chain of Restaurants
Tuning À la carte
Looking for some suggestions
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<blockquote data-quote="TRBO VNM" data-source="post: 14537949" data-attributes="member: 14678"><p>No it doesn't, but we are going to do it this week. Changed pumps to another set of stock pumps with their fuel lines and pprv that were removed from a low mileage car and it still has the issue. Actually crazy that at idle fuel rail pressure is about 17-18psi now. New FRPS sensor as well and swapped with another sensor to confirm.</p><p></p><p>And what is crazier, put another base tune in it and then the rail pressure is reading correct. Went back to a tune that was previously logged and showing good pressure and this time showed low pressure. Honestly have never seen something like this before. How a known good file, with good log shows low pressure the second time it is loaded in is beyond me.</p><p></p><p>If it is a pprv issue, which I doubt, I can't see 2 different pprv's having problems when they were both perfecting fine a few weeks ago. Even tried wiggling the FRPS wires to see if there was a connection issue and that seemed fine.</p><p></p><p>Might remove the BAP from the system and see what happens. I triple checked the wiring and it is fine.</p></blockquote><p></p>
[QUOTE="TRBO VNM, post: 14537949, member: 14678"] No it doesn't, but we are going to do it this week. Changed pumps to another set of stock pumps with their fuel lines and pprv that were removed from a low mileage car and it still has the issue. Actually crazy that at idle fuel rail pressure is about 17-18psi now. New FRPS sensor as well and swapped with another sensor to confirm. And what is crazier, put another base tune in it and then the rail pressure is reading correct. Went back to a tune that was previously logged and showing good pressure and this time showed low pressure. Honestly have never seen something like this before. How a known good file, with good log shows low pressure the second time it is loaded in is beyond me. If it is a pprv issue, which I doubt, I can't see 2 different pprv's having problems when they were both perfecting fine a few weeks ago. Even tried wiggling the FRPS wires to see if there was a connection issue and that seemed fine. Might remove the BAP from the system and see what happens. I triple checked the wiring and it is fine. [/QUOTE]
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SVTPerformance's Chain of Restaurants
Tuning À la carte
Looking for some suggestions
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