Question

2001 Ford F250 7.3L Diesel with engine codes P1209 & P1211. The truck will not run and is showing codes. What could be the problem?

Answer 1

The P1209 and P1211 codes indicate a problem with the Injection Control System. The Injection Control Pressure (ICP) Sensor is one of the most common problems, but start by checking the engine oil level and quality and for leaking fuel injectors or injectors "o" ring. You can find more information about the engine codes on the following links:

P1209 Ford Code - Injection Control System Pressure Peak Fault
Read more: https://www.autocodes.com/p1209_ford.html

P1211 Ford Code - Injector Control Pressure Not Controllable Pressure Above/Below Desired
Read more: https://www.autocodes.com/p1211_ford.html