Toyota MR2 Message Board - View Single Post - Which Beams in my Altezza & fuel pressure?

assassin10000 · 06-27-2009, 02:53 AM

The MR2 redtops single vvti have a return style system. Like many carsN so its checked like normal.

Only the Altezza/Blacktop/Dual VVTI is a returnless system where fuel psi is controlled by the ecu varying voltage to the fuel pump (iirc). So you just check pressure as the guage reads, no vac hose to remove or block off.

EDIT: the fuel tank/pump has an internal FPR instead of being on the rail. It is NOT voltage controlled as I originally thought.

Andrew

06-27-2009, 02:53 AM	#6 (permalink)
assassin10000 Beams Owners Group Join Date: Jul 2008 Location: Northern, CA Posts: 379 Thanks: 3 Thanked 37 Times in 31 Posts iTrader Rating: (0/0% )	The MR2 redtops single vvti have a return style system. Like many carsN so its checked like normal. Only the Altezza/Blacktop/Dual VVTI is a returnless system where fuel psi is controlled by the ecu varying voltage to the fuel pump (iirc). So you just check pressure as the guage reads, no vac hose to remove or block off. EDIT: the fuel tank/pump has an internal FPR instead of being on the rail. It is NOT voltage controlled as I originally thought. Andrew Last edited by assassin10000; 05-05-2010 at 01:24 AM..