Fix P2111, P2112 low idle speed, idle speed changes
Ford has issued a service bulletin 10-21-6 to address a P2111, P2112 low idle speed, idle speed changes issue on the vehicles/engines/build dates listed below. P2111 THROTTLE ACTUATOR CONTROL (TAC) SYSTEM – STUCK OPEN and P2112 THROTTLE ACTUATOR CONTROL (TAC) SYSTEM – STUCK CLOSED refer to the electronically controlled throttle body.
In addition to the check engine light and trouble codes P2111 or P2111, you may also notice a low idle speed or an idle speed that fluctuates without driver input.
To fix the problem, replace the faulty electronic throttle body, called an throttle actuator control (TAC) and has issued redesigned part numbers:
7T4Z-9E926-FA Electronic Throttle
8S4Z-9E926-B Electronic Throttle
Vehicles Affected by Ford TSB 10-21-6
2010-2011 Lincoln MKS
2010-2011 Lincoln MKZ
2010 Lincoln MKX
2010-2011 Lincoln MKT
2.0L with build dates: 2/11/2010 through 8/2/2010
3.5L and 3.7L with build dates 3/1/2010 through 8/3/2010
4.6L 2V with build dates 5/7/2010 throug 8/2/2010
Ford throttle body extended warranty
The repair above may be covered by an extended warranty. See Ford Service Campaign 13N03Posted on by Rick Muscoplat