just installed injen cold air intakes and ISR test pipes on my car

when flooring the pedal. There's a slight jerk or power loss then all the power comes back and pulls hard.
Usually happens around 2100-2300 or 3000 if I punch it there.

Just seems to pull slowly for a brief second. Then pull hard after.


Anyone know what could cause this?

2007 350z HR

46K milesb

 

do all the relearns, idle air, throttle position sensor, etc

but since you just installed it, the ecu might need time to self adjust to it

 

So it's normal for it to be jerky after hard acceleration? I went full throttle in 2nd.

2100-2400 jerky delay acel
everything above was good

then 4100ish-4300 it did it again

imma double check all clamls hoses and probably clean the MAFs

 

I'll shine in since I made similar mods. I have an 07 Nismo with 53k miles. Installed an injen intake, HFC, and Tanabe y pipe. The ECU is seeing a lot more air... Don't be surprised it's running on the leaner side. Car needs to get tuned. I experience the same thing. Putting it into the relearn modes helped a bit. Easiest way is just pull the battery for 30 minutes and put it back on... Drive it around a bit.

 

I'll go ahead and disconnect my battery overnight although I did have the battery disconnected prior to installing the intakes. But not the test pipes.

 

I have the same problem installed my injen intakes an testpipes two weeks ago an now agency power exhaust an mine does that I have been told that I need a tune an sometimes mine will idle at 1,500 rpm for 3 seconds after I have done let of the gas when coming to a stop, I have got my uprev license an cable tuner in today now I just gotta wait to get another 300$ to pay a guy I know to tune it if it fixes it I will post back but it will probably be a week before I get it tuned

Also I have done all the little tricks unplug battery for 2 days an the throttle relearn an check for vacuum leak didn't get any luck so I'm assuming I just need a tune