fuel pressure regulator

[tango'dcivic]

Hi, I got my car mapped with an adjustable fpr, if I change it back to a standard, will it affect the mapping

 

[chet baker]

what do you have the fpr set to ?

 

[tango'dcivic]

its at 3bar without vacuum, car bit sluggish with it any lower

 

[chet baker]

you don't want it low VARY BAD, go back to stock or a little high Depending on your mods.

 

[tango'dcivic]

will it do any damage if i bring it up higher

 

[RagingAngel]

in short, if you had your car mapped with the FPR, then you removed it and put it back to stock, yes it will affect your car.

If you make the pressure to any higher, it will also affect your mapping/car.

 

[blinx9900]

Put the stock one back on and have it remapped, FPR on NA or low boost turbo car=waste of money.

 

[chrismc_DC2]

Put the stock one back on and have it remapped, FPR on NA or low boost turbo car=waste of money.

100% correct...

any decent aftermarket ECU should allow injector durations to be altered to take into account any light breathing mods using a stock FPR...

No need to alter the base fuel pressure unless the car is running serious power...