Have a P38 4.6 HSE 1997 with faultcodes P1188,P1191,P1185 refering to O2 sensors upstream and downstream.The vehicle has rough idle and jerks under acceleration.Only problem is that here in South Africa none of our P38's have O2 sensors.Now all of a sudden it also reads "gearbox fault" on the instrument cluster wth codes P1777,P1775,P1516.The engine does not seem to misfire.Fuelpressure reads 2-2.5 bar.Changed the TPS,no change.Any ideas?
Regards.
Marius

 

plugs or wires......

mine was doing the same (not sure of the codes off hand) but it was the plug wires