Check engine light after oil change on VP.

[vn4250]

After new oil change and new oil filter completed on my VP, now every time car starts shows a permanent check engine light. Tried diagnostics mode but keeps on flashing rapidly and no pause so can't make out if any codes being spit out. Also tried disconnect battery for 10 mins, still not fixed. The car drives fine even with the check engine light on???

[Jxw]

unplug the ecu plugs and plug em back in 2 or 3 times, did you start the engine to check codes or just turn it to ign without the eng running?

[Not_An_Abba_Fan]

Maybe you knocked a plug off somewhere? Look at the oil pressure sender near the oil filter.