what four things must be used when diagnosing problems in a

what four things must be used when diagnosing problems in a gasoline injections system

Solution

Pressure tester to see if fuel pressure is upto specifications.

Multimeter to check the sensors resistances against published specs. sensors of ignitor, distributor etc.

Exhaust Emissions Analyzer to check whether the fuel mixture is lean or rich.

Vaccum Gauge to inspecting the intake manifold and vacuum hoses for obvious leaks.