Fuel pump changed out vehicle looping/erratic idle.
Sep 29, 2019 at 2:50 PM
Erratic idle, sputters then shuts off
2005 HONDA ACCORD
WINONAMAILMAN
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Welcome to 2CarPros.
What you are describing sounds like an issue with the idle air control valve (IAC). It could also be a vacuum leak or other issue, but the IAC is my first suspect.
Take a look through this link it talks about how to service the IAC.
https://www.2carpros.com/articles/idle-air-control-valve-service
Here is a link that explains how to check for an engine vacuum leak:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Since you replaced the fuel pump, I will assume you confirmed the fuel pressure is correct and there is no issue with the regulator. Also, I attached a picture below. It shows the IAC on a Honda Accord with the 2.4L 4 cylinder engine. If that isn't correct, let me know.
Let me know if you have questions or what you find.
Joe
What you are describing sounds like an issue with the idle air control valve (IAC). It could also be a vacuum leak or other issue, but the IAC is my first suspect.
Take a look through this link it talks about how to service the IAC.
https://www.2carpros.com/articles/idle-air-control-valve-service
Here is a link that explains how to check for an engine vacuum leak:
https://www.2carpros.com/articles/how-to-use-an-engine-vacuum-gauge
Since you replaced the fuel pump, I will assume you confirmed the fuel pressure is correct and there is no issue with the regulator. Also, I attached a picture below. It shows the IAC on a Honda Accord with the 2.4L 4 cylinder engine. If that isn't correct, let me know.
Let me know if you have questions or what you find.
Joe
Image (Click to enlarge)
Sep 29, 2019 at 6:24 PM
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