Pics of the Porsche Cayenne I converted last week http://www.lpgforum.co.uk/viewtopic.php?f=27&t=14162&p=109782#p109782
Apart from all the usual equipment, we also have an injector flow test rig and can test for unbalanced fuel supply etc.
Interesting but reckon the best test rig is an actual engine, which will test flow of injectors in real world conditions (range of temperatures, range of pulse lengths especially considering LPG injector flow discrepancies occur mainly at short pulse duration)? If the LPG ECU on the vehicle with questionable injectors doesn't support switching individual cylinders back to petrol to allow such a test (all but the latest Prins, some BRC, etc, don't allow switching cylinders back to petrol) then the injectors can be taken off the vehicle in question and temporarily fitted to another vehicle (one of installer's own vehicles) which does have an LPG ECU with the facility.. Obviously not necessary with AEB or just about any Polish system, as the most recent versions of such ECU's all have facility for switching individual cylinders back to petrol - in which case the most that needs to be done to check LPG injector flow/functionality would be to temporarily swap in a new version of the same ECU (plug n play).
Off subject a bit but I wonder if you agree - The other month I was a bit surprised when speaking to the latest Prins importer, because he seemed excited to think some of the functions of the latest Prins system - like the ability to switch individual cylinders back to petrol - was ground breaking stuff! He went on to describe how they'd recently removed a KME system from a vehicle and fitted Prins VSI2 instead because they couldn't get it running right with the KME system fitted, that he 'didn't like the KME injectors'. I had to tell him KME don't make injectors, you can fit whatever injectors you like with KME, the KME ECU would blind the Prins ECU. I reckon he probably didn't know how to set up the KME system properly (or at best didn't know how to select injectors etc to suit the vehicle), seems his customer will have paid a heavy price for what I term Prins narrow mindedness (which seems quite prevalent even these days). The system in question was fitted by a done in a day firm, probably hence the unsuitable injectors (I'd probably agree on that point with him), but in this case the better way forward would be fitting better injectors and calibrating properly rather than removing the full system and fitting Prins.
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