For past 5 months have been dealing with a strange type of issue. Van starts fine and runs fine, after turning it off and turning it back on (usually if less than an hour) van starts to miss on cylinder 3 and runs horribly with check engine light flashing. If sits for an hour+ and start again, everything is fine and light goes away. Dealership can't pinpoint the issue. Waste of money there.
All new coils and spark plugs. Replaced #3 twice with no resolve, injectors checked and cleaned. Whatever it is appears to be electrical. Somedays it has no issues at all. Removed and checked ECM. Anyone experienced similar issues or possible fixes? 124k miles, kept it well maintained since purchasing at 50k miles. Never had any other issues.