IÃ¢â‚¬â„¢d always considered (wrongly), they had a T4 (Testbook version 4.Computer Diagnostic System), but not so, only a sort of grand daddy version of my own U480 OBD2.
I have a Pierburgh (new at 23k) with a Synergy 2, EGR (Exhaust Gas Recirculation Valve) bypass, and filterless PCV (Positive Crankcase Ventilation Valve). The car runs faultlessly. Presuming therefore that the physical set up is correct, one contention seemingly is to replace the MAF (Mass Air Flow Sensor) sensor, viz,
http://www.ebay.co.uk/itm/NEW-air-flow- ... 4cf096a3b2
I donÃ¢â‚¬â„¢t think my workshopÃ¢â‚¬â„¢s knowledge of diesels is that deep, despite their overall competence elsewhere. The car has now covered 63k, last service was at 60k (big one).
Formatively the obvious answer is to find a diesel specialist, with a T4 to gain a more detailed analysis, if such a thing exists? However are there any formative steps, worth trying first?
IÃ¢â‚¬â„¢ve attempted wriggling the wires under the bonnet etc, but without effect. Literally one day the tell tales on, the next off.
Any thoughts/experiences please Ã¢â‚¬Â¦