Posted by Ian Staples on June 17, 2010, 7:34 pmMessage modified by board administrator June 18, 2010, 1:09 pm
Year of Manufacture *: 2001
Engine Size and Code *: B5234T3
( Optional) Fault Codes: P1171This vehicle has P1171 - System too lean part load, yet drives perfectly well, even when the light comes on you don't feel or notice anything. Live data looks good. Ive recorded live data and reviewed it, cant see anything wrong other than the LTFT is up and down and steadily drifting towards being constantly 25% which is when the light comes on. Reset everything and LTFT goes back to 0%, drive for a while and same fault happens. Cant find an air leak. Each injector drops the engine revs the same amount.
Any ideas?
