Check engine light- got codes, now what?
Thread Starter
Le Mans Master
Joined: Jan 2003
Posts: 6,059
Likes: 12
From: AKA Harvey Mushman-I know just enough to be dangerous "Those who sacrifice liberty for safety deserve neither"- B. Franklin
Senior Member
Cruise-In V Veteran
Check engine light- got codes, now what?
I noticed that I had my check engine light on a short trip to town.('04 MN6 vert, 12K or so miles, stock replacement K+N,X pipe, PRTs). All guages looked normal, car ran fine, 1/2 tank of gas, filled up last week. I got home and followed these instuctions from a post by 3vettes@home.:hold the "options" button down while pressing the fuel button 4 times, when DIC goes into Manual diagnostics, scroll down by pressing guages button, then press RESET to clear each code (you should write them down first)
I did all that and found 2 codes- 10PCM had PO327 H C and BO-RFA had U 1064 H. I cleared them and they didn't come back while idling in the garage. But now I notice that the check engine light does not come on after I remove the key, reinsert it and turn it on acc or run.
True to my sig. I know just enough to be dangerous. What is going on? 
Thanks, Tom
I did all that and found 2 codes- 10PCM had PO327 H C and BO-RFA had U 1064 H. I cleared them and they didn't come back while idling in the garage. But now I notice that the check engine light does not come on after I remove the key, reinsert it and turn it on acc or run.
True to my sig. I know just enough to be dangerous. What is going on? Thanks, Tom
Thread Starter
Le Mans Master
Joined: Jan 2003
Posts: 6,059
Likes: 12
From: AKA Harvey Mushman-I know just enough to be dangerous "Those who sacrifice liberty for safety deserve neither"- B. Franklin
Senior Member
Cruise-In V Veteran
Just came back from a short blast. Everything is fine now, no codes and the check engine light only comes on when you first put the key in. This forum sure beats a trip to the dealer. Thanks again Randy. 
Tom
Tom
