I made an assumption--which sometimes gets me into trouble--that his talk about doing it while stopped in neutral still involved whacking the throttle WFO. "Stopped in neutral" but not "idling in neutral".
IF (big IF) that's the case, the problem could still be a faulty TPS that doesn't provide proper signal towards the end of it's travel--inaccurate when the throttle is opened more than what's needed for normal driving.
'Course, that's not the ONLY possible cause.
IF (big IF) that's the case, the problem could still be a faulty TPS that doesn't provide proper signal towards the end of it's travel--inaccurate when the throttle is opened more than what's needed for normal driving.
'Course, that's not the ONLY possible cause.