# EEFI500A. • Set contains a tee manifold with a shutoff valve, a 3-1/2" dia. gauge assembly with a blowdown valve and the adaptors needed to test most fuel injection systems. • 1/4" male and female quick coupler fuel adaptors for testing pressure on newer Honda® 1.3, 1.5, 1.6, 1.8 and 2.0 L engines.