ryans01z28

I'm building my own fuel injector cleaner and want to know how many psi it takes to open the injectors. Thanks in advance

ryans01z28

Wow no one knows??

EinST

No, it's more like you don't seem to understand what you're asking. Are you trying to pressurize the fuel injector on the fuel supply side until the fuel injector sprays? What do you think the electrical connector is for?

ryans01z28

Well you c I want to know how many psi they can take so I don't ovr pressure them and wreck them if that's possable.

EinST

Without knowing what exactly it is that you're rigging up, I suggest not to exceed the nominal key-on-engine-off fuel pressure of the vehicle the particular injectors came out of.

ryans01z28

i built a on the rail fuel injector cleaner like the otc cleaner (see pic). im guessing i could run the pressure at the same as the fuel pump pressure or slightly below

EinST

I don't know what you mean by "fuel pump pressure" but if you were to disconnect and block the fuel return line, you shouldn't exceed the nominal KOEO fuel pressure.

ryans01z28

"Fuel pump pressure"= 41-47psi I didn't mean to confuse you i cleaned the fuel injectors and my problem still exists please see my other post on the problem