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Discussion Starter · #1 ·
a couple months now i have been having issues with what i keep thinking is boost spiking drives fine until i accelerate hard to WOT and my boost gauge reads ~15psi acts like it has a 2-step (has a stuttering problem) then just falls on its face i changed spark plugs and air filter changed oil but other than that that is it any ideas to as what is going on??!! thanks in advance!
 

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a couple months now i have been having issues with what i keep thinking is boost spiking drives fine until i accelerate hard to WOT and my boost gauge reads ~15psi acts like it has a 2-step (has a stuttering problem) then just falls on its face i changed spark plugs and air filter changed oil but other than that that is it any ideas to as what is going on??!! thanks in advance!
FPS.
 

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Discussion Starter · #3 ·
just the fuel pressure sensor thats it?
 

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Could be a lot of things. Check for boost leaks also.
 

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Coil, FPS or fuel pump
 

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is there a code that comes up for the fuel pump? or a way to check if it really is the fuel pump
 

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Well it depends, FPS sometimes will not give you code, sometimes the car runs perfect and shut the fuel for a second or two, or worse, shut down your engine in the middle of the highway.
 

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Monitor the fuel pressure on VIDA, if it goes too much over the nominal 480 Kpa, and acts real crazy, you know it is the sensor. You might even diagnose a failed pump with monitoring in VIDA
 
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