I attached 3 logs when it happened, the afr look as if I released the gas pedal for a second, map suggests that the supercharger was disengaged.
Originally Posted by
Padgett
Agree, momentary loss of the throttle signal will tell the engine to go to idle but since is normal operation may not set a code if momentary.
I would instrument with Torque Pro to monitor and log a number of things: throttle position, speed, time, rpm, MAF, coolant temp, voltage., ... Drive until it happens, then review the log file (should be in .csv format & individual file by trip.) Suspect something is going to zero.