My growing complaint with OBD11 is the structuring of the DTC and vehicle information. OBD11 users post something and think it's an informative DTC, yet it's missing 60% of the information that would have been there in a copy/paste from a VCDS log.
Take this thread. "what's the DTC"? From OBD11, we get "Fault b200049 Static". While a VCDS autoscan log would have:
Address 44: Steering Assist (J500) Labels: 8K0-909-144.clb
Part No SW: 8K0 909 144 G HW: 8K0 909 144 B
Component: RCEPS H40 0508
Revision: 00001000 Serial number: 0015589422
Coding: 100000000001
Shop #: WSC 02391 785 00200
ASAM Dataset: EV_RCEPSAU48X 008015
ROD: EV_RCEPSAU48X.rod
VCID: 35614D929407E5969D-8060
1 Fault Found:
0770 - Internal Control Module Memory Check Sum Error
B2000 49 [137] - Internal electronic failure
MIL ON - Confirmed - Tested Since Memory Clear
Freeze Frame:
Fault Status: 00000001
Fault Priority: 1
Fault Frequency: 1
Mileage: 8911 km
Date: 2015.06.13
Time: 02:44:23
I get the module address, module part number, module coding if any, DTC date, etc.
Or they post screen caps of basic text. I don't have OBD11; I do wonder if there's a better way to log the vehicle scan and users are just not leveraging that aspect because the tool does not take them there by default?
All the info is probably there in OBD11, but you're going to have to find it and compile it to match what VCDS produces on its own.
As to tools, kind of depends on the component at hand. As soon as you need to replace a door handle sensor if you have advanced key, you're going to want long shaft Torx bits. If you're doing any interior work, you'll want trim tools; I've made a lot of use of
https://www.amazon.com/gp/product/B07DD6ZPYV swivel sockets, obviously metric, have come in handy from time to time (removing cat from turbo, etc). Torque wrenches, from the small 1/4" to the big (relatively) 1/2". I've built my collection as a I go, as I tackle each new task. Same as I did with my Probe back in college. Otherwise, you could prepay on a lot of tools one could use, but which you won't in a college parking lot.
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