IMO oil in the red plug would not trigger those fault codes cos both are related to outputs through the black plug, give some contact spray in the black plug, the pins for these outputs are 6(MIL) and 30(glow plug warning) which are on the same row if you'll watch the pin disposals of C0658, the 14.7 fault code is not about the glow plug relay but about the dash light
can you see the glow plug warning on cold start?, to check the MIL run a 5 throttle purging sequence to see if it's flashing or not cos the self test is managed by the IDM without ECU involvment so that's irrelevant
Discovery Td5 (2000), manual, tuned
Bookmarks