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Discussion Starter · #1 ·
Hey guys I’ve been having an issue lately. I’ve noticed mild vibration while driving at speed and giving maybe 5-10% throttle.
Once I’m past that and rpms accelerate past 1500-1900 then it smooths out.

I used my scanner and had a pending code of 0420. Could this be my issue?

also on a side not, when I went to plug my scanner in the diagnostic port I seen this module plugged in right next to it. Does anyone know what it is or used for? I was thinking maybe a gps tracker but I’m not sure. The green button does click

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