I've had a BBK 85mms throttle body in my truck for about 1 1/2 years, driving about 10,000 miles with it. Recently I bought a Hypertech Max Energy 2.0 programmer to adjust the speedometer calibration for my larger tires, and ONLY made that one "tuning" parameter change. I didn't change anything with the engine, transmission or TPMS. Used the truck for a few hundred miles over the next 2 weeks without any issue.

Now, I got the p2111 (throttle actuator stuck open) error code a few days ago with its limp mode. Warning lights and messages on dashboard, no power, engine shaking, felt like it was running on 1 cylinder and giving it throttle did nothing. Pulled over, used the hypertech to check and clear the DTC, restart the vehicle and all is good again. Get home and remove my Pedal Commander from the truck to rule it out as the culprit.

2 days later, same thing happens, clear code, continue towards home and it happens again before I get there. When I got home I used the Hypertech to "return vehicle to stock settings", hopefully eliminating any chance that the programmer interfered with signals, Ecu, etc enough to possibly cause the error.

Question now: Is the BBK throttle body the more likely culprit? Or is the Hypertech programmer? Wondering if any members here have any experience with anything similar and might shed some light on my issue.

 

I'm not familiar with the ford throttle body logic but here goes. Is there a means to calibrate the throttle body position sensor either OEM or your aftermarket? I have a feeling your calibration for the OEM body may be off from the aftermarket at some point in it's range and the ECM is not able to process it. I don't know if your tuner or FORSCAN can correct this.

 

I have never had good luck with a hypertech anything, But then again I haven't used them in almost 10 years due to that fact.

 

I think you've answered your own question. Considering that your truck ran fine with the throttle body for 1.5 years, and considering that your problem didn't start until after you installed the Hypertech, by process of elimination, Hypertech is your issue. Go back to stock and see if the problem persists. If not, make a call to Hypertech and see if they can explain and fix what's going on. If not, just use ForScan to fix your speedometer and return/sell the Hypertech.

 

What He said^^^

 

Update:
I removed the Hypertech "tune" for the speedometer calibration by "returning vehicle to stock settings." After a few days of vehicle use, the p2111 error code returned. At this point I have to assume that the problem is related to the BBK throttle body, so I removed it and reinstalled the OEM throttle body. I'll continue to use the vehicle to see if the error returns.
But, I was wondering if anyone is aware of the possibility that there is still some effect the Hypertech tuner could have on the ECU, almost like a virus affecting a computer? Whereas once the tuner has interfaced with the Ford's ECU, there's always some permanent code left behind?

 

@NHscrew5.0 Did removing your BBK throttle body resolve your issue? Curious because I just had a similar issue this evening with my 2016 F150 5.0 with an C&L throttle body. I was getting the same code, and after disconnecting my throttle body harness and plugging it back in again the truck ran fine. Wondering if I should put the factory throttle body back on.

 

My problem was the throttle body itself. I sent it back to BBK who fixed it under warranty. All good since. The Pedal Commander or Hypertech wasn't the issue. I now have the OZ tune in my truck in addition to the other mods. The tuner can be used to adjust tire size, so I don't utilize the Hypertech for anything now.

 

@NHscrew5.0 Thanks for responding! Sorry I revived such an old thread, but figured it was worth a shot, and was!
Guess I will be swapping my throttle body out and giving the vendor a call. Thanks again

 

I've also had this issue with a C&L throttle body. Ultimately had to switch back to the stock TB. Anyhow, did you have any resolution to this matter?