The engine sputters on cold Morning starts and loses power when accelerating?

Hi,

Since it happens when cold, the first thing I would suggest is to check the signal from the coolant temperature sensor. This sensor provides information to the powertrain control module that is used to determine the correct air/fuel mixture to run the engine based on outside temperature.

If you have a live data scan tool, check what it is indicating before starting the engine for the day.

Also, has fuel pressure been tested or the exhaust for a partially plugged catalytic converter? If not, those are two other areas that can cause what you described.

Here are two links that you may find helpful:

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

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

Let me know.

Take care,

Joe