|12-08-2002, 08:07 PM||#1|
Join Date: Aug 2001
Location: Albuquerque, NMVehicle:
2001 Impreza 2.5RS
Quick fuel pump replacement question
Quick question about swapping out a fuel pump.
If I swap out my stock RS pump for a Walbro high-flow pump (255 lph, or something like that)... and if I do not change the ECU settings at all -- will I need to drop the voltage going to the fuel pump (via a SAFC, or otherwise) to get the same amount of fuel I'm getting now?
In other words, will replacing the fuel pump make me run excessively rich, without any additional tuning?
Thanks for any help.
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|12-09-2002, 08:41 AM||#2|
Join Date: May 2001
Location: Moscow, IDVehicle:
05 Legacy GT Sedan
07 4Runner Limited
Re: Quick fuel pump replacement question
The FPR is what controls the fuel pressure the injectors see, not the fuel pump.
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