mr_guy_mann's Recent Activity
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mr_guy_mann replied to the thread Engine lubrication before (auto)start?.
From what I can see of data from scope captures, the ECM starts firing coils and injectors as soon as it "syncs" the cam and crank...
Dec 25, 2024 at 11:10 AM -
mr_guy_mann replied to the thread How to test if individual battery modules are good.
Read this thread then ask questions. https://priuschat.com/index.php?posts/1788250 .
Dec 25, 2024 at 12:13 AM -
mr_guy_mann replied to the thread 2009 Prius Techstream Data Log Request | Running at its best?.
That's correct for a Gen2 Prius, and for MANY other cars as well. BUT, there is something known as "downstream fuel trim" which does...
Dec 24, 2024 at 10:03 AM -
mr_guy_mann replied to the thread 2009 Prius Techstream Data Log Request | Running at its best?.
That would be at the top of my list. If the catalyst bed is broken up then the chunks can restrict exhaust flow. The engine has to work...
Dec 24, 2024 at 9:56 AM -
mr_guy_mann liked Brian1954's post in the thread 2009 Prius Techstream Data Log Request | Running at its best?.
Look at the long-term fuel trim. What are you seeing for your car?
Dec 23, 2024 at 10:03 PM -
mr_guy_mann replied to the thread Passenger side high beam not working.
IF the high beam shutter works on one side then all of the wiring from that headlight back to the control switch is fine. I would...
Dec 23, 2024 at 10:02 PM -
mr_guy_mann replied to the thread Engine lubrication before (auto)start?.
I may be wrong, but I seem to recall learning in a hybrid class that the Gen3 transmission had a second "fixed" planetary gearset that...
Dec 23, 2024 at 1:32 PM -
mr_guy_mann replied to the thread Favorite OBD2 scanners with hybrid functionality?.
Here's another thread that looks at several different scantool apps and devices for smartphones. Post 37 is a summary....
Dec 19, 2024
