I swapped my tired LQ9 6.0 in my gen 3 truck for a more rubust https://blueprintengines.com/products/4 ... psls4271ct 7 liter. This is a gen 4 with different configuration for the crank reluctor and cam signals, a configuration that will not work with the P59 in my truck. Unless I can convert the signals, Lingenfelter TRG-002 58X to 24X Trigger Conversion Module was the answer. Then it wasn't. I'm just not happy with it. It isn't working out for me. Then there's another adapter for the throttle body, still works. The obvious thing to fix this is upgrade to gen 4? Seems that way since I am definitly not tearing into the engine to replace the reluctor wheel with a dumber one. Especially since there's only a few thousand miles on it. So... I found what I thought was an E38 at the junkyard. It came from an 07 Acadia 1/2 ton etc, etc.. Turns out it's an E67! OK that'll do I guess as long as I can force a VIN change to an unsupported P59 VIN.
I bought the OBDXPRO VX. It works great on the P59 but the support is lacking and it doesn't play nice with the E67. Maybe I should have purchased the GT.
So how do I force a VIN on it that isn't supposed to be there? I have no idea lol. But I'm going to try to figure it out since it's winter sports season, that means lots of time in my lab.
I had this idea at first to use Arduino to sniff the canbus and log to SD or serially capture the bus stream. I want to do this so I can see what's going on in there and attempt to figure out how to change the VIN on the E67 to the VIN on my 04 Silverado SS. It worked, however it took too long to make code changes, upload, make code changes, upload, again, again, etc.. I will go back to the Arduino later on when I have a better grasp on all this.
Lets try my Raspberry Pi 4!! I ordered a RS485 CAN HAT, https://www.amazon.com/dp/B07VMB1ZKH?ps ... ct_details
I installed the Linux can-utils, SocketCan, and a bunch of other stuff. Can-utils works great. I can connect to can0 and log directly to the screen or log to a file, amongst other things I don't quite understand yet. It was pretty cool seeing the bus idle messages. Next order of business, log the bus during a HP Tuners read of the ECU to hopefully see what that's all about.
Attached are two logs. The first one is 14mb and was logged during a "read entire" Hp Tuners event that took about 2 1/2 minutes. The second smaller size log was recorded while I connected the VCM scanner. I read the DTC, cleared the DTC, started logging, stopped logging, and all kinds of clicking in the special controls section.
This below is a tiny sample:
Code: Select all
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two files attached hopefully.