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Stock Problems/IssuesDiscussions related to warranty related issues and repairs, or other problems with the OEM parts and software for MINI Clubman (R55), Cooper and Cooper S(R56), and Cabrio (R57).
So driving home no issues or CELs. Turning in a round-about and I lose power and sputter to a stop. Cranked engine and would stutter a bit no full fire. At this time no CELs. Towed home. Two days later checked the fuel pump and tank pump is working. Attempted to start and it ran for about 45 seconds then stopped. CELs were P0503 (speed sensor erratic response?), P1776, P1777 both of these seem to be mixed info when searching the web. Has anyone encountered this? Any paths I can be pointed down?
ps I also pulled the spark plugs = good pulled the valve cover to look at the timing chain and tensioners= look good to me
Did you every figure out the issue? I'm having the same problem.
Originally Posted by John Noyes
So driving home no issues or CELs. Turning in a round-about and I lose power and sputter to a stop. Cranked engine and would stutter a bit no full fire. At this time no CELs. Towed home. Two days later checked the fuel pump and tank pump is working. Attempted to start and it ran for about 45 seconds then stopped. CELs were P0503 (speed sensor erratic response?), P1776, P1777 both of these seem to be mixed info when searching the web. Has anyone encountered this? Any paths I can be pointed down?
ps I also pulled the spark plugs = good pulled the valve cover to look at the timing chain and tensioners= look good to me
11-26-2021, 11:01 PM
