Does Tuning Vehicle Leave Evidence on ECU?

[concoursd]

yeah, key count issues were resolved by most of the tuning companies about 2 years ago. Basically, the tuners right the key counts back to the computer so that they are not zero on a used truck.

[chargeragain]

Nope....no trace.

Mine did today. The dealer was able to see a communication interruption before I brought my car in for service. They couldn't tell what caused the interruption however.

[RockyRotella]

Mine did today. The dealer was able to see a communication interruption before I brought my car in for service. They couldn't tell what caused the interruption however.

Interesting.

What kind of vehicle? Can you explain what happen? Did you reinstall the original tune and were there any issues during the process that might have caused the interuption?

[HerDaytona]

Mike I was looking at the PCM with Dataviewer. I saw the PID "Reflash Program Status", could you elaborate alittle as to what this PID designates? Also saw key count but I am more interested in the above. I also saw key counts when using my laptop.
Not Complaining about how well my wifes Daytona gets up and goes.

Thank You