Fuel pressure regulator
Fuel pressure regulator



Does anyone know what sort of fuel pressure regulator is this?
It's written Denso 5020 5g23 and it should be 3.5 bar.
I'd like to mount a 4.0 bar fuel pressure.
If there isn't a replacement I have to study how to bypass it... and use an external fuel pressure regulator!
It's more difficult than I thought...
After studying carefully the fuel pump and injectors rail, I realized that Honda has a Returnless Fuel Injection Systems!!
I'm really not familiar with it...
Maybe changing injectors It's easier!
After studying carefully the fuel pump and injectors rail, I realized that Honda has a Returnless Fuel Injection Systems!!
I'm really not familiar with it...
Maybe changing injectors It's easier!



I did it!!!
The theory...
AutoSpeed - Modifying Returnless Fuel Systems, Part 1
AutoSpeed - Modifying Returnless Fuel Systems, Part Two
About 3 hours of work..
Last edited by alf74; Jul 28, 2008 at 07:22 AM.
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