Searched ALOT! First of all I ve read of people upgrading S4 TII Primary Fuel rails to S5 to remove the PD.?? Is this at all true concerning the PD??

thanks..

Dave.

 

All fuel injected cars have a PD.

The S5 rail is no different other than $75 more and the PD can not longer be replaced.

The whole fuel rail must be replaced when the S5 PD fails.

 

so in short the best option would be an aftermarket FPR with an integrated PD?? I know the topic has been run into the ground with thread after thread. but im looking for a viable option that doesnt envolve an entire fuel system customization..

 

The best option would be a new PD... if you have a S4, get a factory replacement S4 PD (which really should be changed every 10 years or 100K miles anyway).

If you have a new one that will last 10 years, what would be the worry?

 

yeah I can agree with that. I've just wondered about the reliability of them. But i think overall people over react and think that just having a PD is "inferior" to begin with, eventhough the car was built that way.

 

was also wondering..how about a fuel pump w/integrated PD? I am going for a fuel pump upgrade here soon.. any options you know of with an integrated unit.