Tried checking the engine codes (held trip reset and trip odometer switches then switched ignition to on and held for 5 seconds). It seemed to go through its diagnostic tests but the only code I noted seems to be "999". Tried three times all with the same results. Restarted the van and both the "Check Engine Soon" and "Oil Pressure Warning Light" remained on.
Any thoughts or guesses as to what might be the cause of this?
tia.