2005 CTS-V idle hesitation (misfire)

[julien performance]

Hi guys , I have 2005 CTSV on the dyno and the car is having something that look like misfire but when Im datalogging misfire I dont have anything , the spark plug and wires are brand new , does somebody has seen this problem before , I do not want to tune the car before finding this problem .

[waynehartwig]

Replace the spark plugs since it started showing signs? or was it before? Replace them again.

[HO4THSS]

is this a cammed engine? i had this issue when i first installed my cam, and it was solved after idle tuning.

[julien performance]

The wires and plugs were change to solve the problem , beside the exhaust and the removing of converter this car is bone stock

[ecotec88fiero]

Random misfire or do you have a specific cylinder?
If you ahve a specific cylinder you need to swap igniton compoenets with another cylinder and see if it follows.
If it does, igition is a problem. If not, check the usual misfire checks.

[HO4THSS]

post the tune, log and cfg. maybe we will spot something....