I’ve just had a fun few hours preparing the Capo for its MOT (annual inspection) and one of the issues I wanted to get around to sorting was the slightly high tick-over.
For quite a few months now the idle has been 1,500 – 1,550 when warm – not enough to be troublesome, but noticeable. Problem is ….. I’ve plain forgot to do anything about it once the ignition was turned off! So today I dusted off the cable and charged the old ASUS notebook and plugged in.
Thankfully it was just as I hoped, the TPS (Throttle Position Sensor) was not at zero with a closed throttle. It was reading 1%. A tap on the ‘TPS Reset’ had it reading 0% and the idle was fine once again. So, the question is, have I got a TPS on its way out, or was it simply the fact that I hadn’t done a reset in 18 months ( 20K+ miles), something I used to do at every service. I’m hoping it’s the latter and will endevour to make sure I hook up TuneECU during all future services. Funny really that a tool I used to hook up on an almost weekly basis slowly slid to the dark recesses of the workshop over time.