How to connect the spark plug wires to the distributor cap on a 1999 mitshubishi galant 3.0 engine

1. Connect the distributor's B+ (battery) terminal to a switched 12-volt source, such as the ignition switch.

2. Connect the distributor's tach terminal to the tachometer signal wire, if you have a tachometer.

3. Connect the distributor's ground wire to a good engine ground.

4. Connect the distributor's #1 spark plug wire to the #1 spark plug on the engine. The #1 spark plug is usually located on the driver's side front cylinder.

5. Connect the remaining spark plug wires in firing order sequence to the distributor cap terminals. The firing order for a Buick 455 engine is 1-8-4-3-6-5-7-2.

6. Install the distributor cap and rotor.

Have you changed your spark plug wires and distributor cap? You might have a spark jumping from a bad wire or distributor cap. Under acceleration, the amount of air/fuel in the cylinder increases and this may make it harder for a spark to jump across the plug gap. It may be finding a different path, and that is what's causing your engine to run rough. Spray water over your spark plug wires in a dark place and listen to see if your engine runs rough. Look for where the spark is jumping from a wire or distributor cap.

Found this info, hope you can read it?

For this you have to determine when the #1 cylinder is at TDC (Top Dead Center) - when it would be firing. Take the distributor cap off and look at the rotor - it would be pointing at the #1 spark plug wire on the distributor. The wires would be connected it order around the distributor cap starting at 1. The sequence is 1-8-4-3-6-5-7-2 in a clockwise fashion.

1. Ignition Switch: Improperly Connected or Faulty Ignition Switch.
2. Battery: Battery Discharged or Faulty or Coroded, Broken, Shorted or Poorly Connected Battery Cable.
3. Solenoid Switch: Starter Solenoid Switch Faulty.
4. Starter Starter Motor Faulty.
5. Wireset: Worn or Damaged Spark Plug Wires.
6. Coil -Ignition-: Faulty Ignition Coil.
7. Distributor Cap: Loose, Cracked or Worn Distributor Cap.
8. Spark Plug: Incorrectly Gapped or Fouled Spark Plug(s).
9. Distributor Cap and Rotor Kit: Loose, Cracked or Worn Distributor Cap.
10. Carburetor: Worn, Faulty or Damaged Carburetor.
11. Fuel Pump Faulty Fuel Pump.

OKAY STANDING IN FRONT OF ENGINE ON LEFT SIDE CYLINDERS FACING YOU IS 1 3 5 ON RIGHT SIDE DRIVER SIDE CYLINDERS FACING YOU IS 2 4 6 LOOKING AT DISTRIBUTOR CAP NUMBER 1 SPARK PLUG ON CAP IN THE 9 OCLOCK POSITION YOUR NUMBER 5 SPARK PLUG ON DISTRIBUTOR CAP IN 6 OCLOCK POSITION .STARTING AT NUMBER 1 SPARK PLUG ON CAP COUNTING CLOCKWISE COUNTING 1 2 3 4 5 6 THATS YOUR SPARK PLUGS WIRES ON CAP TO ENGINE PLUGS. 6 PLUG WIRE ON CAP IS AT 7 OCLOCK POSITION.

GET A PIECE PAPER DRAW A LARGE CIRCLE TOP UPPER HALF CIRCLE LEFT TO RIGHT WRITE NUMBERS 1 AND 3 BOTTOM HALF CIRCLE LEFT TO RIGHT RIGHT NUMBERS 2 AND 4 THAT YOUR DISTRIBUTOR SPARK PLUGS WIRES LOCATION.STANDING ON SIDE OF ENGINE WHERE DISTRIBUTOR IS LOOKING DOWN AT DISTRIBUTOR 1 AND 3 FIRST TWO SPARK PLUGS TERMINALS NEXT TO ENGINE. AND 2 AND 4 SPARK PLUGS TERMINAL ON CAP FACING YOU. THIS IS CYLINDERS LOCATIONS STANDING IN FRONT OF ENGINE.RUN WIRES FROM DISTRIBUTOR CAP TO PLUGS TO THE ENGINE SPARK PLUGS.

The firing order is 1-2-3-4-5-6

The rotor spins counter clockwise and bottom of the distributor cap is the number one spark plug lead.

For more details, you can check the information about Mitsubishi Galant/Mirage/Diamante 1990-2000 FIRING ORDERS in Autozone.com (free register).

Hope this helps.

1. Double check the connections at BOTH ends of the wires- at the distributor and at the plug. 2. Make sure each spark plug boot has proper connection. 3. Double check the plugs to make sure that they are all gapped correctly and no contamination. 4. Hold each spark plug upright and make sure that the ceramic insulator near the tip isn't loose and sliding down and possibly covering the metal tip..(had this happen more than once) 5. Check for spark at each plug (be careful) 6. Open the distributor cap and double check all the exposed metal connectors are clean. 7. buy one extra plug and change out the suspect plug.