There were literally hundreds of thousands of V6 Commodores out there with those injectors and the corresponding data in the tune. You really need to test at 100% DC, if you pulse then the calculations will be wrong as you are introducing to many variables. The1 has a very good test rig and has bee...

Hi imortality, thanks. I'm not doubting those are the figures. But they don't (unless I am miscalculating) seem to tally up with the injectors that I have which are my set of originals, a set of suspecting counterfeit, and a few mixed old genuine from wrecks and appear to all be working 100% fine in...

You are a gem antus, thanks. I hadn't come across those wiring diagrams before.. They seem to be the ones that will match my car. Along with those and the manual I have, i should be armed well to do the electrical diagnosis later this week. I hope. The injectors I have, and only need are part number...

Thanks antus, Reading your last post has just made me think that I haven't actually measured the voltages at the injector on the car. Though that shouldn't be anything relating to how the injector pulse times the software is reporting back, surely? What is the required voltage at injectors meant to ...

Thanks Angus, appreciate your advice always. Yes I can't see the 250ms -500msec being possible. However, that is what is being displayed from the Advanced Diagnostic software from Envyous Customs. I can't work out why it would show such readings if there isn't an issue with either the tune, ecu, wir...

Hi imortality, you person of great knowledge..:) That does make sense with the reason the original O2 sensors seem to work healthy again after being off the car for a week or so. I'm also thinking that because of the counterfeit injectors allowing so much more fuel through them, it's now carboned up...

Just a bit more (maybe crucial info) details of testing. I redid for the third or fourth time now, fuel rail pressure tests. Came back with these figures below. (I used this value of pressure to check the injectors and their operations at such pressures to see if fuel pressure could be causing any i...

Still going with this problem. Oxygen sensor voltage seems way too low. Have you used any Silastic on this engine any where. Maybe the Oxygen sensors have become poisoned. Thanks for the thought kojab. Good thought, but no I don't use silicone or anything in that area. Only place I use any sealant ...

Where did you get to with the dodgy injectors? Looking at those numbers you're just cruising down the motorway in lean cruise mode. The knock retard numbers don't make sense though. Thanks immortality for the feedback. Yes, it was in Cruise at the time, well noticed. I can't understand why at idle ...

Hi guys, as this is an ongoing diagnosis issue I thought best to keep it all on this posting rather than start a new one (unless directed otherwise). I am experiencing weird issues while trying to diagnose this car. (I will update full details a little later, just need to finally get it resolved as ...