1AZ engine loses accelerating power

Hi,

Does it do this all the time? Have you checked fuel pressure to confirm it isn't low?

The idea that power loss is experienced the harder you press on the throttle leads me to think there may not be enough fuel getting to the engine.

Here is a link that explains how to check fuel pressure. You will need a fuel pressure gauge, but most parts stores will lend you one.

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

Let me know what you find or if you have other questions.

Take care,

Joe

Hi,

Let me know what he tells you. Also, have him check the engine coolant temp sensor signal to make sure it is working properly.

If possible, ask him what the short-term fuel trims are. That will help me determine if there is a fuel pressure issue.

Take care,

Joe

You are very welcome. I look forward to hearing back from you. Hang in there. We'll get it figured out one way or another.

Joe