Hi i have a 2001 250t rx and it has recently begun to act a bit strange.
The car has always driven great, and been a rocket generating plenty of thrust in the top end, however recently when i was coming up Mt Vic, it suddenly dropped power/boost and seemed to be only running at about 75% of it's normal output.
I thought at the time the ecu may have dropped power due to things getting hot ? however my temp gauge was all good.
I backed off and pulled over, restarted and as i went over the top of the Blue Mtns it seemed to come good and bounce back, so i thought it may have been a temp thing.
Over time its started to do it more regularly, to the point i thought i may have had a blocked exhaust/ cat etc as i also noticed one of the pipes coming out of the muffler tip didn't seem to be flowing at all.
I visited my exhaust guy and we pulled the pipe off at the cat and pre muffler and took it for a run and still no improvement, so i guess we can eliminate the exhaust.
However a system scan of the car revealed a fault with the knock sensor.
Could this be the culprit ?
any help would be appreciated