Does the Scanguage measure EGT or EGR temps? During the regen mode the EGT rises dramatically...but how does that affect the EGR temp. since that takes place before the DPF and the resulting EGT? Neither measurement is listed in the description of the ScanguageII. I'm trying to determine when the truck is in regen. In my F-350 the turbo, engine performance and sound are the same before, during, and after a regen. The "setup" function does not tell me when the engine is in regen.
EGT and Regen vs Scanguage
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First: all digital displays (that don't have specialized additional sensors) get all their info from the OBDII port using the Ford CAN network, capturing encoded data, then decoding it and displaying it. *IF* it's digitized by the truck so that the truck computer can use it (like in regens), then it's on the OBDII port. Where and how it's coded seem to be trade secrets???
Yes, for a 6.4 the ScanGaugeII will give you three exhaust temps, but I have yet to find a true digitized EGT at the mainfold on the CAN/OBDII port. You need to setup/use three Xgauge settings to get the three exhaust temps that I know of (do a search here for Xgauge and you should find my prior posts on these).
If you crawl under your truck, you'll see three sensors in your exhaust system, the first before the CAT, the second between the CAT and the DPF, the third directly after the DPF. I believe that these are the three PIDs that we're using. These three give great info on the regen cycle when its happening.
If you do the settings like I did, you'll notice the first warm up quickly, the second right behind it, and the third trailing along later. The first two change more dynamically, the third not so much (which makes sense). Yes, you will *see* the regen start and all three will start to climb, with the second and third getting over 1200F or so. When regen ends, you'll see the first drop off quickly, the second cool down next, and then thrid later on as the DPF cools down.
Look for the images I posted in the first thread about the recent TSB for 6.4s, it'll make more sense. In addition, you can also get info like EOT and ECT and watch them together if you want. Theorhetically anything on the CAN bus that one has the PID info for can be displayed with a SGII. In other words, if the "other guys" can get it off the OBDII port, so can the SGII (once details are defined). Only problem is that some of the "standard" SGII gauge displays like MPG etc don't calibrate properly for the SD ...
I got great support initially from a guy at Linear Logic when I discovered him on another forum helping out a bunch of 6.0 owners. Now, for some reason I no longer can get his attention, - sigh -.
- Don
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