Fuel Pressure Regulators and setting meters? - Toyota Yaris Forums

cali yaris · 05-15-2009, 10:33 AM

No, it's a fixed pressure. It's the injectors job to squirt the correct amount of fuel. We have it at 40 right now, but if the injectors max out we may end up with a higher pressure. Not done tuning yet!

cdydjded · 05-15-2009, 10:47 AM

Quote:

Originally Posted by cali yaris

No, it's a fixed pressure. It's the injectors job to squirt the correct amount of fuel. We have it at 40 right now, but if the injectors max out we may end up with a higher pressure. Not done tuning yet!

Your fuel pressure should not be fixed. It should be 40psi at idle & go up to 50-60psi depending on the boost you run. The regulator is a 1:1. If your pressure stays at 40psi at all RPM range then there is something wrong.

05-15-2009, 10:33 AM	#1
cali yaris ULTIMATE View User's Garage Drives: 07 Yaris Turbo Join Date: May 2007 Location: Canoga Park, CA Posts: 14,859	No, it's a fixed pressure. It's the injectors job to squirt the correct amount of fuel. We have it at 40 right now, but if the injectors max out we may end up with a higher pressure. Not done tuning yet! __________________ Micro Image forums, online store and shop are now closed. It was a great eight year run, but it was time to focus on other things. I'm still selling parts on eBay under micro*image seller ID and customers can still make requests for anything specific.