Hi, last summer 2016 when I drove my XJS 4.0L 6 cyl in very slow busy traffic during hot weather the engine suddenly stalls, check engine light pops up and when I scan the OBD the following code shows:
P1607 MIL O/P Circuit Malfunction.
Now this summer 2017 same conditions the engine doesn't stall anymore but the rpms revs up to 1200-1300 on idle and in neutral.
The same OBD code shows.
Can anybody tells me what this means and what to do please?
Thanks,
Marc