Caughing and Sputtering on light acceleration on new tune
#1
Caughing and Sputtering on light acceleration on new tune
I just finished an auto to manual swap and i am now having troubles with what appears to be the tune, on soft acceleration when cold it coaghs and sputters with a very lean AF and clears up a little when it warms up and almost quits when completly heat soaked.
I have an M90 Blower, cams, LTs and steeda CAI, The boys in indiana have built me 5 tunes so far and they all seem to be about the same.
The car ran perfectly on its previous tune.
Any Ideas??
i changed wire harness and computer so it should tune just as a standard.
Ive checked wire harness, injectors, intake leaks and it hasnt thrown any codes as of yet.
Im stumped and it appears they are too but they havent given up yet.
Thanks
Kirk
Video included
http://s1025.photobucket.com/albums/...t=DSCN0124.mp4
I have an M90 Blower, cams, LTs and steeda CAI, The boys in indiana have built me 5 tunes so far and they all seem to be about the same.
The car ran perfectly on its previous tune.
Any Ideas??
i changed wire harness and computer so it should tune just as a standard.
Ive checked wire harness, injectors, intake leaks and it hasnt thrown any codes as of yet.
Im stumped and it appears they are too but they havent given up yet.
Thanks
Kirk
Video included
http://s1025.photobucket.com/albums/...t=DSCN0124.mp4
#2
i see you checked the harness, did that include making sure the front
oxygen sensors are plugged into the correct (left side/right side) connectors?.
i have read about this happening to folks, so although a long shot it's all i got right now.
good luck and i hope you get it sorted out
#5
I have data loged it several times and at WOT and everything looks good.
Thanks
Kirk
#6
They need to data log it when it is cold. When it is idleing, starting to warm up and driving normal. Most timers can figure out the WOT and make the car make good power. The good tuners can make the cars drive good.
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