Recent content by AmpOverload

Short Answer: I don't know of any. Long Answer: Two popular Android apps on this forum are 'Torque Pro' and 'Car Scanner'. I haven't run Torque Pro in a long time, but my recollection is that it didn't handle Service/Mode $19 (which would be required to query NON-emission-related DTCs) at...

I hate to be the guy with bad news, but both the @azswiss spreadsheet ("Lookup" tab, column "A") from post #2 and your Python code make the same mistake -- confusing/mixing OBD2 physical addresses (SAE J2178-1, Section 9) with functional addresses (SAE J2178-4, Section 6 [etc]). One example...

No apology necessary, good sir! Indeed, I should both apologize for (and thank you for indulging) my (excessive!) curiosity. I was just puzzled to hear about a GM vehicle without the DIC but with a dedicated "CHANGE OIL" lamp that didn't flash after an oil life reset. I try to understand and...

Forgive me, I don't mean to drag this out, but I think we're still on different pages. You're talking about what the light does now, when you go to KOEO, without doing the pedal-pushing reset procedure. I'm talking about what the light did (or would do, if you tried the "reset" again) right...

I think I may have been unclear... I was speaking only about the KOEO pedal-pushing "reset" process itself and the expected flashing of the lamp almost immediately after that's been successfully done. Lamp activity at any time other than right after a successful "reset" process is a separate...

Just curious... Did the "CHANGE ENG OIL" lamp flash after you did the reset? Based on my experience with resetting the 'engine oil life' on GM vehicles, I would expect that the "CHANGE ENG OIL" lamp would flash (about 5 times) after a successful pedal-induced reset operation. However, my notes...

Although I'm a bit late to this thread, I noticed that you had problems getting a usable "Knock Retard" PID to use in Torque Pro. I fired up Tech2Win and made it think that it was connected to a 2007 GMC Envoy with the 4.2L engine. I then used my vehicle simulator to control the data being...

Many thanks for your clarifications and additional explanations! I learned a lot from your post! Your expertise far surpasses mine, so I consider myself a humble student here. :) I too have seen a VPW design that uses optocouplers -- specifically, this one...

It's always interesting to see the various hardware implementations of SAE J1850, so thanks for providing another option with your project/schematic! Page 2 of your PDF schematic shows "L2" with a value of "0 ohm 0805", which I assume is an oversight. Can you please clarify what that was...

I think I may have been misunderstood. I'm certainly not saying that there are no transmission-related DTCs! I'm simply trying to dispel the all-too-common misunderstanding that "code present" equates to "CEL illuminated". Having said that, after some research, I see that for the 2002...

Just a friendly reminder... The so-called "Check Engine Light" (CEL) is there only for EMISSION-related Diagnostic Trouble Codes (DTCs). I'd be checking for NON-emission-related DTCs, with software (either built into the scantool or used with a smartphone/tablet/laptop in conjunction with a...

Sorry for the low-res photo. I shrunk it to keep the uploaded file size manageable. It's certainly not a perfect gear, but there are many things I could do to try to improve it, including some I didn't even mention yet, like enabling "random seams". And, for the record, I did no cleanup...

Indeed! This is the 49-tooth version that I quickly printed last night, from an enhanced version of that OpenSCAD script I posted earlier: Even with no tweaks to the layer height or lowering of print speed (or any other techniques meant to improve quality/resolution), it came out better than...

Cool video! Thanks for sharing that! Even though I should have been doing other things since my last post, I just couldn't resist playing around in CAD for a while. I got a basic gear very much like the one in the model I'd linked to, all with just 3 lines in OpenSCAD (my design tool of...

Very interesting! I wonder if those (small) discrepancies would prevent the 3D gear from actually working? I compared various compatibility lists -- the 3D model's list (which, to be fair, I don't think was intended to be considered "complete") and a couple of actuators sold on Amazon that...