So iv been getting these codes for about a year now and mainly only get the codes when in reverse giving it any throttle other than idling in reverse and alway get these 3 codes at the same time, can’t find any thing on line about these codes other than ford tech makuloco about one of the codes being for tps , changed the tsp it did not help

P2105 Throttle actuator Control (tac) System
forced Engine shut down
p2107 Throttle control actuator module processor
p2110 Throttle actuator control system -forced limited rpm

 

Are these "Pending Codes" that go away by themselves or "Permanent Codes" that you have to manually erase? What does the check engine light do when these codes occur?

 

05's were subject to bad series of throttle bodies. mine failed at 60k . Intermittent shutdown at very inconvenient times . Sometimes weeks apart . The only fix was a new throttle body upgraded number .I can't remember the new series number . They are several hundred bucks back then but it will drive you nuts working on it . I suspect it was the motor or module by motor that failed to move to the proper position . This tries to stop a runaway throttle condition if it doesn't feed back to pcm properly . I would only use an oem replacement . I bought mine from oem select on ebay .

 

Well, it may well be the throttle body, but I would definitely determine what the problem is before putting on any new parts. I'd start by testing the gas pedal position sensor (Electronic Throttle Control Module, ETC) at the PCM with a voltmeter.

One other thought. If your OBD tool can show live data, you could monitor the TPS and ETC while backing up. There may also be a PID for monitoring the throttle body itself.

 

Agree that it points to throttle body issues, but why only in reverse? I would inspect the harness that plugs into the the throttle body for chafing or something that grounds out when the engine and harness flexes in reverse.

 

Lol... the 3 DTC's are pointing to a bad Throttle Body.

 

I have to erase them every time

 

it did it for the 1st time Monday going forward and not just in reverse

 

Has the TB been removed and thoroughly cleaned ?

 

yes a few times over the 12 years Iv had the truck