This nice little car would not fight its way out of a wet paper bag, odd misfires, poor performance and surges on acceleration. No fault codes logged all live data seems ok (ish). Coolant temp switch and wiring ok, 3 new plugs and fitted a new coil pack. Tried a MAF sensor even though scopes out ok. Checked valve timing and visually checked valve gear. All compressions at 155psi and fuel pressure at a constant 3 bar. Stripped out egr and found to have a slight leak so new egr fitted. ECU earths and voltages checked ok.
The only glitches that I can find on live data are that the O2 intergrator is at 134 steps, the O2 BLM idle load is at 106 steps and the O2 BLM partial load is at 140 steps, considering they all reset to 128 steps I do not think that it is excessively adrift.Lambda also scopes out ok.
The MAF voltage at idle is 1.38v air expect is 3kg/h but actual is at 7 kg/h. At full throttle the actual MAF reading is 62kg/h. How can an ecu expect to have a reading of this and the actual readings be considerably more. Surely all descrepencies would make the readings drop rather than double.
The injection duration is 4.3ms at idle.
Anybody any ideas, what have I missed???