Hi Guys and Girls,
I have an issue with my 05 freebie Td4 which has done 95000 miles.
She is rough idling at around 750rpm and is smokey (white) when cold, does not stall but is hunting.
when warmed up she runs fine, I have noticed that when I disconnect the high pressure fuel sensor she stops hunting,
I have no warning lights or codes in the OBD, but my interrogator only shows a limited live stream.
Will a dealer/independents OBD interrogator be able to distinguish between healthy or blocked injectors and or sensors if there are no fault codes from the ECU?
I have replaced all filters including fuel, and am planning on changing oil as soon as I get the chance, so far have seen no real improvement.
has anyone had a similar issue or guidance as to narrow down the problem,
I am thinking injector (expensive, is it worth getting from a scrapper and do they all need to be balanced) or fuel regulator/sensor
Thanks in advance