Straight after the MOT today, (passed with flying colours ) hit the M4 where there was a massive traffic jam. After a while, the supra started to cough and splutter when i pressed the accelarator. She did this the whole time i was stuck in the jam, but once i got clear of it, the problem seemed to clear up.
It was seeming to happen when the first turbo started to spool, so obviously once i was up to speed on the motorway, the first turbo was pretty much constantly spooled, so not sure if the problem sorted itself.
A while back i had a turbo vacuum pipe come loose, and this felt a bit like that, but ive check the vacuum pipes and cant see anything wrong.
Anyone got any ideas?
Cheers
Jon