Originally Posted by steelhead
That was one sick oiling pump/sensor system, at least 37 oil system fail codes. Keep monitoring for additional oil codes until you're satisfied the problem is solve. I'm not so convinced it's only the sensor. At least 1 oil pump motor circuity open code
These codes should have made the EMM put the motor into 1200 rpm SAFE mode or even motor shutdown by the EMM and lockout due to no oil pressure/oil pump motor fault.
Extra oil in these E-TECS at idle would cause idle roughness.
Never seen an E-TEC dumping in too much oil at idle only. All rpms, yes
Very failure proof well error checked system that protects the expensive motor well.
Injector spray is in stratified mode with only a small roundish ball of fuel sprayed in at low pressure at the end of the plugs. Oil would interfere with idle combustion. EMM does not switch out of stratified mode into homogenous full power full combustion chamber mode until 1500>2500.
NO E-TECS are smooth running in this fueling transition mode. Most of use just quickly throttle on through or if we have to troll in that rpm range, live with it.
What do you have for monitoring gauges?
System Check with Engine Check light?
Or digital E. gauge that displays EMM fail codes?
Really pays to have a E. digital display gauge or MFD that displays motor info. and EMM codes via NMEA2000 digital signalling. Especially on long vacation trips away from home dealer shop.
Nice thing about the E. Diagnostics, easy to carry on long trips for DIYers, can have parts shipped into Timbuctu but E. techs are scarce in the wilds.
Give the motor 10>20 hours runtime to clean out the extra oil, then see how it runs.