91 olds cutlas calais

1991 Olds Cutlass91 olds running on two cylinders i have changed the plugs and wires the coils and the coil housing what else could it be.


Could be a few things that might cause this issue.

  • Loss of Compression – possible blown head gasket or valve damage
  • Loss of injector pulse or stuck injector if equipped
  • Spark plugs damaged
  • Plug wires damaged
  • Wiring Harness damage