FPR Mod ?

[Razorecko]

So for the FPR mod do you run a "T" and use both the vacuum from the intake and the boost from the blower into the FPR ? Or do you cap the intake vacuum source and just use the boost source?

 

[ryanschmidt]

cap intake vacuum and just use boost on the FPR. you T off between FPR and boost source for the boost gauge.

 

[Razorecko]

Thanks ! is there any benefit to using it if youre on a stock pulley w/ a urd fuel pump ?

 

[30Birdy]

I'd like to know as well.

 

[whippersnapper02]

Thanks ! is there any benefit to using it if youre on a stock pulley w/ a urd fuel pump ?

Are you running the TRD tune?

 

[Razorecko]

Yea running the trd tune. Tried it today, didnt like it. Felt like it was slowing the truck down a little and the pump ( dw200 /urd ) was noiser as it was running the whole time.

 

[whippersnapper02]

The TRD tune is already super rich. The FPR mod would further enrichen the AFR causing you to possibly lose power.

 

[Razorecko]

The TRD tune is already super rich. The FPR mod would further enrichen the AFR causing you to possibly lose power.

Yep, that's what I was thinking. I don't have a wideband but I do have an obd2 reader capable of reading the stock a/f sensor. I've been trouble shooting unstable fuel trims but after replacing the fuel pressure regulator it has solved the issue. With a new urd fuel pump (the dw200/urd is oem quiet) and the new fpr the truck runs as good at 110,000 miles as it did at 45k

 

[Razorecko]

And to note the stock fuel pump was still in good running condition but the filter was caked with garbage and looked like a stuffed bag of charcoal. I heard the oem pump starting to whine and strain out of the cabin