2013 Mustang GT Procharger Stage 2 Kit Issues

[KHills5058]

Looking for some help/suggestions with how to diagnose some issues I am having with my 2013 mustang GT and the procharger stage 2 kit that I installed last weeked.

I ended up getting the complete stage 2 kit from procharger and have been trying to figure out if I have a boost leak somewhere. I have gone thru two tune revisions with procharger, the first was to solve a DTC for the o2 sensors detecing a rich condition. Procharger was able to make some edits to the fueling and got that squared away. Now, just yesterday I got a DTC P0507 for idle air control system rpm higher than expected. The provided tune from procharger has the idle set at 750rpm but when coming to a stop, the idle would jump up to about 850-900rpm and then surge to about 1100rpm. Procharger provided another tune revision which I have yet to try but, could this issue also be coming from a vacuum/boost leak?

Any suggestions/help would be awesome.

 

[Noobz347]

There is an "Idle Relearn Procedure" from BAMA tunes that may help.


This is a hybrid method based on what works in practice on Fords of similar era. Use at your own risk; “relearns” can vary by calibration or PCM version.


— Preconditions —
• Good battery, healthy charging system
• Throttle body and IAC (or equivalent) clean
• No active faults (check engine light off)
• All accessories off (radio, lights, blower, etc.)

Procedure:

1. Start engine; leave it to idle (in Park or Neutral) until it reaches **full operating temperature** (coolant temp stable).
2. Let it idle for about **1 minute** with **A/C off** and no extra loads.
3. Turn the **A/C on**, but leave blower low or as usual, let it idle for **another minute**.
4. Drive the car **under light load** (no heavy throttle) for some miles (5-10 mi or so) to let the PCM adjust fuel trims, adaptives, idle targets, etc.
5. Optionally, you can shut engine off, wait a bit, restart, and observe idle. If idle is still unstable, repeat steps above.


If you have a scan tool that supports “Throttle Body or Idle Learn / Relearn” functions, use that after battery disconnection or when replacing throttle body / sensors.

https://support.bamaperformance.com/hc/en-us/articles/207690476-Idle-Relearn.com

 

[KHills5058]

Ill give it a try! Thank you!

 

[KHills5058]

Just a little update. I adjusted some of the intercooler piping and couplers from the discharge pipe on the blower and I think I may have had a slight boost leak. I did the idle relearn procedure while datalogging and after doing a WOT pull the idle seems to have sorted itself out.

Hopefully procharger can review the log today and provide some feedback too but, thanks again for the idle relearn suggestion!