Pete, The customer has not long bought the van and from what he says its always been like it. It is only a 75hp engine so I wouldn't expect great performance but im pretty sure it should be better than it is.

Tony, Injectors are a strong possibility but as you say, I have no way of proving that if testing is not reliable, Will have to rule all other factors out before buying some.

One thing I have noticed this morning is, When checking the serial data the MAF meter gives a good voltage reading but the next line down shows a calculated KG/H figure which is blank?? Does anyone know if this is just a redundant field on this version of the ECU or is there something wrong internally.

Cheers.

Steve.