Speedometer is freaking out

Viewing vehicle speed in the OBD2 live data stream with a code reader will tell you if the spikes are coming from the PCM, which will help determine the cause.

Edited to add: I said it again because it’s still relevant.
 
  • Like
Reactions: EROCK
sab said:
Viewing vehicle speed in the OBD2 live data stream with a code reader will tell you if the spikes are coming from the PCM, which will help determine the cause.

Edited to add: I said it again because it’s still relevant.
Click to expand...

Ya I don't have the reader you're talking about. I looked up what I think you're talking about on Amazon for like 70 bucks. You think that will tell me the info you talking about?

Screenshot_20240527_145417_Amazon Shopping.jpg
 
What's the speed showing through the ODB port? Got a code reader that can do live data? A Bluetooth ODB dongle and Torque Lite (free app) would do it.

-Mac
 
EROCK said:
Ya I don't have the reader you're talking about. I looked up what I think you're talking about on Amazon for like 70 bucks. You think that will tell me the info you talking about?

View attachment 530210
Click to expand...

The picture on their website shows vehicle speed graphed in real time, which is exactly what you need:
1716850672095.png


Yes, I think it will work.
 
Ok I got the ODB reader. The ECM is indeed freaking out with the insturment cluster speedo. Video attached below.
 
Top Bottom
Back