Had a similar one last year on my S80 2.5t with LPG.
Long term fuel trims and short term maxed out.
Reset and would be ok ish for couple days then back to warning light and maxed trims.
Fault finally traced by my mechanic too ..... Petrol injector seals ..were allowing just enough air in to throw everything out but oddly was smooth enough on petrol.
Parts were about £30 from frf.
Maybe get your ear in or try to smoke test ?
Iain
__________________
S70 T5 1999 (now written off grrr)
S80 2.5T LPG 2004
XC90 D5 2005 (2006)
|