Low idle when warm...help please!

[Hideintire]

Hi, I'm having low idle issues and would appreciate some help. 04 SS basically stock except shorty headers and true duals. Thought it was a dirty TB, but cleaned it good and no change...honestly it is worse! MAF was also cleaned, but that was about three weeks ago...before the problems started!
This problem seemed to begin after I downloaded the tune and added electric fans. Best I can tell...only the fan info changed...but the truck has run worse since and the mileage is down 1 mpg!!! Could there have been a mail-order tune on truck that EFILive did not read? It seemed to download properly...but something has changed! Any help would be greatly appreciated!!!!
Thanks,
Jimmy

[joecar]

Post tune file read from your PCM.

2004 Silverado SS...?

Post log files.

[Hideintire]

Thank you joecar, but I am new and have no idea how to do that...hope this works!

2004ss efans.ctz

[joecar]

Post a log file of warm idle (i.e. CL).

[Hideintire]

Thanks again for helping, joecar! I do not know how to do that!!! I will read up tonight and try to figure it out...Will try and get one posted tomorrow.

[joecar]

If you can speed read, then take a look in the V7 Scantool User Manual pdf...

basically, connect to vehicle (green button at upper left), go File->Select Controller, goto PIDs tab and select a few pids, then hit Record (red button at bottom middle)... when stopping the log, save it to file.

[Hideintire]

Hello joecar....figured out what was wrong with idle. When I cleaned the throttle body, I did not reset computer! That is the old guy showing through! Made worlds of difference. I also alter my tune slightly, by some of the tips you had posted on tranny tuning and then reloaded and its much better...not perfect, but better. If you are open to helping a bit, I will post a log when I get some more time and maybe you would be kind enough to help this old beginner!
Thanks again!

[joecar]

Sure, no worries, post current tune file and some logs.