2004zo6

I have a Camaro with Holley terminator x.took it to tract and made several passes.as soon as I let off trans brake it stumbles like u pull your foot of peddle for a split second then takes right back off and runs fine the rest of the pass. when data logging it it shows tps dropping from 100% to 78 ish Everytime then comes right back to 100 .ive changed tunes and changed rpm when leaving and still same thing everytime.any ideas would he appreciated.

mrvedit

It would help if you shared your entire log file with us. (Well those who use Holley.) I think you have to "zip" the file before this forum lets you upload it.
I would first look at Pedal position. Maybe your seat moved back and your foot actually came off the pedal a bit. Next look at battery voltage to look for electrical gremlins. I'm not aware of anything else that could drop your TPS, but I'm no expert.

2004zo6

I'll try and figure your how to do that thanks.i took floor mat out and moved seat forward to make sure foot wasn't the problem. Does exactly same thing at same time

LilJayV10

iTrader: (39)

If you put a log and tune file in a .zip file, you should be able to post it.