Power Loss At Start-Up

DavidB123

Hello,

I was wondering if anyone has the same issue? My 2013 Nismo occasionally loses power at start-up. The car starts fine but when I start driving it feels like a 2 cylinder car or like the power is going through a bottleneck when I accelerate. I can floor it in 1st and it doesn't have the beefy throttle as usual and does this in all gears. This is not like another thread I read where the Tach won't go past 3500 rpms. It drives completely normal except that there is a strained acceleration. This has been going on for around a year but previously was once in two months.

It only happens if the car has been off for around 24 hours in my garage. I can duplicate it every weekend and happens 100% if the air conditioner is in the on position prior to starting. The only fix is to either drive for a little, pull over, turn off and re-start around 5-7 times or to stay in one place and restart 5-7 times. I do maintenance every three months at the dealership, and the dealership scratches their head because there is no computer error code. I have never duplicated it at the dealership because I recently figured out how to make it happen. It never happens once on the road or after a day at work. Now that I can duplicate it I plan to go to the dealership but will probably have to leave it for a couple of days for them to see. I thought if maybe someone has had this issue or has any ideas it might save some time.

The only engine modification is that I have Stillen cool air intakes but have had this since the car was new. Any assistance would be appreciated.