Diablosport Forums

I have a 2005 gto and a u7191 #15468. Stock with diablo tune LTFTs were -1 or -2, right on the money, but when i installed an aem cone filter my LTFTs were around -7 or so. I also have an X pipe and 40 series flowmasters. That doesn't make sense to me that the ecm is pulling fuel. Although my IATs are 100*+ sometimes 135*. Also, when I monitored my A/F at WOT it Spiked to 19.2 Yikes !!!!!!!!!! All the more confusing if it is rich at normal throttle openings. I was able to get The LTFTs to -1.67 by adding 4 to the injector slope and adding 5 to PE, But it still says it is very lean at WOT, and at idle the LTFTs are + 5-6, lean I think. Please help me.

On mine (7191 06 Imp) viewing the A/F real time at WOT showed really high A?F also, but when the log was download to the PC it showed an A/F at 12.39.

Thanks for the info. BTW what was your car registering live at WOT? My LTFTs do register 0 like they are supposed to at WOT. So. I guess I should be ok.

terminator2 wrote:I have a 2005 gto and a u7191 #15468. Stock with diablo tune LTFTs were -1 or -2, right on the money, but when i installed an aem cone filter my LTFTs were around -7 or so. I also have an X pipe and 40 series flowmasters. That doesn't make sense to me that the ecm is pulling fuel. Although my IATs are 100*+ sometimes 135*. Also, when I monitored my A/F at WOT it Spiked to 19.2 Yikes !!!!!!!!!! All the more confusing if it is rich at normal throttle openings. I was able to get The LTFTs to -1.67 by adding 4 to the injector slope and adding 5 to PE, But it still says it is very lean at WOT, and at idle the LTFTs are + 5-6, lean I think. Please help me.

As I recall, the inferred A/F in the tools playback is displayed wrong.
To see the proper value, you should play it back on the data viewer.

Thanks