'93 Grand Am only running on 2 cylinders

From the fuel system troubleshooting guide - 1993 Oldsmobile Achieva

Inspect Fuel Pump Low Fuel Pressure.
Inspect Fuel Pump Relay - Faulty Fuel Pump Relay.
Inspect Fuel Injector Pressure Regulator - Faulty Fuel Injector Pressure Regulator.
Inspect Fuel Pump Strainer - Clogged or Dirty Fuel Pump Strainer.
Inspect Engine Control Computer - Incorrect Operating Information Being Delivered and Sent From The EEC.
Inspect Fuel Tank - Fuel Tank Empty.
Inspect Fuel Line - Fuel Line leaky/kinked/loose/disconnected
Inspect Fuel Fittings/banjo bolt(s) - leaky/loose fitting(s)

For your next posting, in 1993, Oldsmobile produced the Achieva with four engine types:
Available engines

• 4 Cylinders, VIN "3" 2.3L MFI SOHC Quad
• 4 Cylinders, VIN "A" 2.3L DOHC Quad 4 HO
• 4 Cylinders, VIN "D" 2.3L MFI DOHC Quad 4
• 6 Cylinders, VIN "N" 3.3L FI OHV

To find the engine type of your 93 Achieva, compare the 8th digit of your VIN code to the entries in the above table.

So i think you have 2 ignition coil packs on your car, each one connects to 2 cylinders.
But i dont know what cylinders each one controls, but the coil connected to cylinders
2 and 3 may have gone bad. Thats where i would start. If you check and find out that
one coil pack connects to cylinders 2 and 3, remove the coil packs and switch their positions.

Reconnect the wires and see if then cylinders 2 and 3 work, and 1 and 4 dont. That would tell
you whether that coil pack is bad. Thats seems most likely to me.

For 1993 Mazda MX-6 2.0L MFI DOHC 4cyl the OBD Diagnostic Link Connector is located: Under hood, driver side, upper engine area, passenger side rear of air filter housing, mounted next to airflow meter connector.

Hope this helps (remember to rate this free answer)
.

For the 1993 Nissan Altima 2.4L DOHC in-Line 4-Cylinder:

Firing Order:
1 - 3 - 4 - 2
Cylinders:
_____back______
|...1....2....3....4...|
_____front_______

Distributor:
3.........1
......o.....
4.........2

For the 2002 Daewoo Lanos:
Includes ALL Models:
S and SX Sedan
S and SE Hatchback

All have the 1.6L DOHC In-Line 4-Cylinder:
Firing Order:
1 - 3 - 4 - 2

Cylinders:
..........(back)..........
|...1....2....3....4...|
.........(front)

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

2004 Pontiac Grand AM 2.2 liter DOHC L4 VIN "F"...




2004 Pontiac Grand AM 3.4 liter V-6 VIN "E"...




Hope help with this (remember rated this).

For the 1997 Pontiac Grand Am:
I do not know if you have the 2.4L DOHC In-Line 4-Cylinder or the 3.1L V6. However I have included both below. I suspect based on the SE Model you have the 3.1L V6.

For the 2.4L DOHC In-Line 4-Cylinder:
Firing Order:
1-3-4-2
Cylinders:
..........(back).........
|...1....2....3....4...|
..........(front)

For the 3.1L V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
......(back)........
|...1....3....5...|
_____________
|...2....4....6...|
......(front)
Ignition Coil Connections
_____..____...____
|..O..|..|..O..|..|..O..|
|.5..2|..|.3..6|..|.4..1|

Let me know if this helped.....

For the 1993 Chevy Lumina:
I do not know if you have the 2.2L In-Line 4 Cylinder, 3.1L V6, or 3.4L DOHC V6 Engine; however I have included all below.

For the 2.2L (4-Cylinder)
Firing Order:
1-3-4-2
Cylinders:
......(back)
1.....2.....3.....4
......(front)
Ignition Coil Connections:
o <---4
...o <---1
.........
......o <----3
.........o <----2

For the 3.1L V6:
Cylinders:
...(back)
5.............6
3.............4
1.............2
....(front)
Ignition Coil Connections:
.|.1..4.|..|.6..3.|..|.2..5.|


For the 3.4L DOHC V6:
Firing Order:
1-2-3-4-5-6
Cylinders:
.......(back)
1........3.........5
2........4.........6
.......(front)
Ignition Coil Connections:
.|.1..4.|..|.3..6.|..|.2..5.|

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

For the 1.7L VTEC DOHC AND the 1.8L DOHC:

Firing Order:
1-3-4-2

Cylinders:
........(back)
4------3------2------1
.......(front)

Distributor:
....(back)
...1
.............3
2
..........4
...(front)

Rotation:
Clockwise

Let me know if this helped, or if you have additional information or questions. Feel Free to contact me at FixYa.com!

did the check engine light come on. if so check the fuel filter and fuel pump.