Car came in going bad at times with engine light on.Read p0170 so cleared and code came back a short time later. Sometimes air bag light also comes and goes.Heard ECU give problems. Oil pressure switch was leaking and thought oil may have contaminated ecu.

Disconnected battery and took off fuse box and cleaned all connections with contact cleaner. Problem seems worse now with car losing power steering, Eng light on, no indicators,wipers etc.When you turn off and start again 5 mins later all work ok for a while but then problems return.

Any ideas?

had a few with fuse box problems cleaning connections sometimes works and sometimes does not