I Have A 91 Acura Integra When I Turn The Key The Starter Motor Dosen't Turn. Replaced The Starter Motor And The Ignition Coil Same Problem. Checked The Starter Relay It Checked Out Ok. What Else Should I Check? CHECKED ALL FUSES(ECU,.ETC).

neutral/safety switch....connection from positive post to starter...starter ground. Don't know what 91 integra has but...camshaft pos. sensor or crank pos. sensor.

check your body grounds. hope it helps. gl.

oops, sorry, I see whitgsr07, already said to do that (starter ground). my bad.