Hi,
I recentlly brought a Pscan unit to help try to diagnose a problem I have with emissions after an MOT failure.
Firstly, let me say that it is still being updated and developed and has huge potential. In my case it has not helped that much. Cheap sanner tools seem to give info that Pscan does not report at the moment and it needs to be easier to use to appeal to a broader user base I think. I am keeping Pscan as I feel it will be useful in the future.
I have a TF so MEMS3 ECU.
Does not report freeze frame data.
Does not report Fuel trims.
You need to learn how to produce graphs from a spreadsheet with the data file to help seeing some problems. I can't get this to work but that is down to my inexperience with spreadsheet software.
None of the data value are explained and there is no real guide.
There are no expected values so you can check quickly if some thing is wrong.
Not sure if all the values can be trusted. I am replacing the O2 sensor at the moment because I have yet to find anything wrong with Pscan except that the upstream sensor "Switching Frequency" seems very low from what I can gather from trawling the web but I don't know for sure and that is back to using a shotgun method of replacing parts.
You can download the live data and share it on a forum such as this and anybody can load it into a spreadsheet to have a look.
I tried this with my recent post in the Pitstop section but either nobody can see anything in the data or they have better things to do
.
For some idea of what the live data values mean I have found a website that gives a better idea and has helped me a bit.
https://blackbox-solutions.com/help/SM003.html
Pscan is good but it still needs (and seems to be getting) work.
It's fantastic for older pre-odsb2 ecu's and can be used to program keys, get info and reset erros with ABS, airbags and security systems.
It's not a magic bullit to solve problems though, at least not yet.
If you are an expericed mechanic Pscan is probaly more useful, i'm very much DIY.
Hi,