Cutlass V6-260 4.3L DSL (1984)
Fuel Injector: Testing and Inspection
Remove injection nozzle, then connect suitable tester and gauge following tool manufacturer's instructions. Operate tester handle several times and
observe gauge reading just before oil is sprayed from injector tip. Minimum injection nozzle opening pressure for new nozzles should be as follows: On
nozzles with no color band or with green color band, 1000 psi; On nozzles with red color band, 800 psi. Used nozzles should be approximately 150 psi
less than new nozzles. Spray pattern should be uniform and atomized near the nozzle tip, Any solid column of fuel or small droplets forming near the tip
is unacceptable.
