Hesitation after CAI install
 

Anyone have issues with hesitation around 7k after installing a CAI? Sounds like I am hitting a rev limiter when pushing the car hard. I have a 2005 so I have the 3 vacuum hose setup. there was a tiny vacuum hose plug in the bag, but I saw no mention if installing plugs unless the car was a 2010. Any thoughts?

Did you cap the nipple behind the throttle body and remove the VFAD setup?

Ah that's it. Although none of the supplied caps fit that inlet. Maybe I lost one. I rigged something up and it seems to be fixed. Thanks!

Glad you got it sorted :)

hmm I still seem to have the issue. That vacuum line is sealed off. Anything else to look for?

Check to ensure your MAF screen is tighly secured inside the intake pipe! When I installed my BHR ignition I thru my intake together rather quickly so I could get on the road and check out the improvement. Ended up having rough idle and very lean AFRs... It was because my MAF screen was SIDEWAYs inside the intake pipe. G/L

If you look inside the couplers, there are lips that are designed to trap the intake screen from moving, as well as little grooves where the screens need to sit. Screens should always be placed on the filter side so that intake air keeps them against those lips.

I know that. What I was explaining is that if you do not tighten the couplers/seat it in the grooves properly then the screen can become dislodged and turn sideways inside the pipe. When this happened to me my 8 behaved similarly to the OPs....

Thankfully, Charles pointed this out to me and all was right again in the world for my 8 and I ;)

ok, thank you all! I will take a look at all the couplers/ screens and MAF tomorrow. Thanks

Took all the couplers and pipes out in that area and 1 may have been a hair off? hard to say. The other thing I noticed was the pipe section going into the coupler at the upper tie bar, was slightly misaligned. I rebuilt that section of the Intake piping (2 screen couplers and 2 sections of pipe) out of the car with the pipes firmly pressing the screens into their seats. I placed that complete unit into the car all at once and made adjustments with the other couplers. After my first test drive it didn't hesitate once, so I hope I got it now. Man the MAF is sensitive on the 8, that is crazy.

Currently have the AEM. Liked it at first, now I want to switch back to stock or a Racing Beat intake... Love the sound, just can't stand the possible air flow issues it has; I had to re-align mine twice to stabilize my idle.

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I've had mine for years now without issue. As long as you tighten all of the couplers down tight and ensure the MAF screen is seated you should have zero issues.

Ya symptoms seem to be cured. Something was holding it up, b.c it is pulling harder now too.

Nice! Glad to hear you got it fixed :D

Let Me know if you decide to sell :)

Congrats to the OP :)

What's next on The mod list?

Not sure yet. I am in the testing and tuning phase of my build, which you can see more on here. https://www.rx8club.com/showthread.php?p=4561438#post4561438

I am trying to get to the race track this weekend to see where the car needs help after the install of the intake and coil overs.

Thanks again for everyone's help on this