What size is the torx on the Throttle Position Sensor bolt? Its not t20 or t15.

 

Never looked at the size before.
Got a torx tamper bit set(tip has the hole in the middle) for under $10 a while ago, these are just the tips for use in a screwdriver handle with the hex fitting


You want to get the tamper set, because they work on regular torx but also the torx with the pin in the middle.