what cause misfire on #3 and #4 cylinder I replace #3 coil no change made I check for pulse at 3 and 4 injector with a noid light the light flash and injectors are clicking.engine codes are P0300, P0303, P0304. compression #1, cylinder 195psi, cylinder #2, 190psi cylinder #3, 185psi, cylinder #4, 190psi.
Apr 30, 2026 at 2:14 AM