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P0299 - Super odd - Tune glitch?

Messages
48
Reactions
33
Points
12
Location
Minnesota
Vehicle
2026 ST
#1
Was on a 650 mile roadtrip yesterday, at ~550 miles, was cruising at 60 mph and barely tipped into it, P0299 Turbo Underboost Condition popped up and went into limp mode. I thought I popped a charge tube somewhere (which happened immediately after the CVF intercooler and charge pipes were installed, easy fix).

Pulled over, checked every coupler, all tight . . . Cleared the code with the RTD4 and all good, Got into it hard a few times after and making 22.7 psi no problems. Put another 150 miles on since then and all good. Weird, right?

Has anyone ever seen anything like this? I'm not sure if could be an unexpected condition in the ECU tables or possibly a sensor?
 



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