Diablosport Forums

I just installed the diablosport programmer on an 07 chevrolet classic with the 5.3L engine. After tuning we get a "reduced engine power" message on the cluster. Why is that and do u have an update for this vehicle? The part # for this programmer is U7192.

This message is normal and will appear as the PCM cycles the messages through the message center, it just so happens that this is the last message displayed.
Once the tune is installed, and you start the truck, I assure you there is no reduced engine power!

Thanks

thanks for the response. no engine power loss here.