P1409 code

A P1409 means there is a problem with the EGR vacuum regulator solenoid or it's circuit.
Probably about the only thing you can do to diagnose it is to check the resistance of the solenoid. It should be 26-40 ohms.

Slideshow: Top 10 Fords at 2026 Ford Nationals
By | 2026-06-09 11:10:08
Based on years of owning multiple modern Ford products.
By | 2026-06-09 10:53:36
SPONSORED: From muddy boots to rain-soaked cargo, these upgrades address some of the most common frustrations Ford truck owners face every day.
By | 2026-06-08 18:50:34
Here's everything you need to know about every Ford engine available for the 2026 model year.
By | 2026-06-05 12:58:01
Slideshow: 10 ugly Ford trucks that we still kinda love.
By | 2026-06-03 09:51:16
Slideshow: the best gifts for dads & grads
By | 2026-06-03 15:43:58
Slideshow: Called the Fortress, the 850-horsepower pickup combines Raptor underpinnings with military-inspired features, survival equipment, and a starting price of $285,000.
By | 2026-06-03 11:38:36
Slideshow: 10 most expensive Ford trucks ever sold on Bring a Trailer.
By | 2026-05-27 16:24:34
Here's everything that has changed for the latest model year.
By | 2026-05-27 16:17:28
Slideshow: Top 10 Ford truck tragedies.
By | 2026-05-18 19:34:33