When trying to accelerate the engine sputters and car will not faster than twenty MPH

Let's start with getting the fuel pressure as this sounds like it is getting starved of fuel. I attached the complete fuel system test that we need to follow to determine if this is the issue.

Let e know what you find and we can go from there. Thanks

Hi,

This can be a few things. The first thing I suggest is to retrieve diagnostic trouble codes. This vehicle has an OBD1 system. It doesn't require a scanner to get the codes. All you will need is a short jumper wire or even a paper clip.

Here is a link that explains how to check for codes:

https://www.2carpros.com/articles/buick-cadillac-chevy-gmc-oldsmobile-pontiac-gm-1983-1995-obd1-code-definitions-and-retrieval-method

Now, if you find codes, let me know what they are. If nothing is found, then we need to start checking different components. First, confirm the fuel pressure is within the manufacturer's specs.

https://www.2carpros.com/articles/how-to-check-fuel-system-pressure-and-regulator

You will need a fuel pressure gauge to do this, but most parts stores will lend or rent one to you.
__________________________________________
Here are the specs for this vehicle.

1994 Oldsmobile Cutlass Ciera V6-3100 3.1L MFI VIN M
Fuel System Pressure SpecificationsNehicle Powertrain Management Fuel Delivery and Air Induction Fuel Pump Fuel Pressure Specifications Pressure, Vacuum and Temperature Fuel System Pressure Specifications
FUEL SYSTEM PRESSURE SPECIFICATIONS
Fuel Pressure .................... 284-325 kPa (41-47 psi)

_________________________________________

Now, a partially plugged catalytic converter can also cause this. Take a look through this link and see if it mirrors what you experience. Additionally, the second link explains how to test one.

https://www.2carpros.com/articles/bad-catalytic-converter-symptoms

https://www.2carpros.com/articles/how-to-test-a-catalytic-converter

Lets start with this. Let me know what you find or if you have other questions. Also, if you can think of any other things that may help me diagnose the issue, let me know that as well.

Take care,
Joe