PCM Previously Tuned?
Thread Starter
3rd Gear
Joined: Feb 2023
Posts: 3
Likes: 0
From: Dallas, TX
PCM Previously Tuned?
1st time vette buyer. Picked this one up with 33k on the clock and in showroom condition. It appears bone stock, but Is there a way to tell if the PCM has been tuned? Who do you trust in the metroplex to custom tune my LT1?
Team Owner
Joined: Jul 2004
Posts: 28,422
Likes: 3,275
From: Hartford WI
Maybe I am not following your question. You sound like you are going to tune it. So why do you care if the PCM has been tuned? If you had a warranty, I would definitely want to know that so they don't invalidate the warranty. OTOH, if you plan to tune and do other mods, you do realize that your warranty is probably void. Obviously if your stereo system dies, it isn't connected to the ECM but transmission failure and engine failure could be blamed on the tune so before I take it, I will want GM to make sure.
