Resetting fuel trims
07-24-2006, 02:44 PM
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Resetting fuel trims I am finally ready to start tuning my ve table as per the tuning 101 sticky.
When i pull up the menu under vcm controls it won't let me click on the tab to rest the fuel trims....What am I missing??
Mark
When i pull up the menu under vcm controls it won't let me click on the tab to rest the fuel trims....What am I missing??
Mark
07-24-2006, 02:50 PM
#2
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Originally Posted by molson
I am finally ready to start tuning my ve table as per the tuning 101 sticky.
When i pull up the menu under vcm controls it won't let me click on the tab to rest the fuel trims....What am I missing??
Mark
When i pull up the menu under vcm controls it won't let me click on the tab to rest the fuel trims....What am I missing??
Mark
07-24-2006, 02:51 PM
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The cable says connected...thats why I am puzzled
I went and did a scan and got alot of neg fuel trims in the lower rpm's...I am seeing #'s as high as -15.
assuming I can get the fuel trims to reset, after I adjust the values in the primary vs rpm vs map table do I need to write the calibration to the vcm before I do another scan and log?
I went and did a scan and got alot of neg fuel trims in the lower rpm's...I am seeing #'s as high as -15.
assuming I can get the fuel trims to reset, after I adjust the values in the primary vs rpm vs map table do I need to write the calibration to the vcm before I do another scan and log?
Last edited by molson; 07-24-2006 at 03:07 PM.
07-24-2006, 10:32 PM
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You just have to be connected to reset fuel trims. I thought the new version of HPT only had a play and stop button anyway. 
After adjusting the Ve table, you do need to write that to the PCM, then reset fuel trims again before logging.
After adjusting the Ve table, you do need to write that to the PCM, then reset fuel trims again before logging. 
