Car runs like s**t after JFab SSIM installed

[l3igl3ang]

Hi i installed my jfab intake mani the other day and now the car runs like shit. it will boost but dosent go any where so i didnt a boost leak test and found a leak comeing from the intake but it dosent seem like it would be big enough to effect the car this much! I will have to retune the car for sure but should it have power? even w/o the tune.

 

[pboglio]

Fix the leak. I use "Hylomar" to seal the intake manifold gasket but with a new gasket you don't really need anything. And please never use RTV on an intake manifold gasket like I attempted to.

 

[l3igl3ang]

I dont think its leaking from the intake to the block it sounds to me from back of the intake maybe at one of the brass nipples.

 

[airmail96]

If you can remove the nipple I would say pull it out and wrap some teflon tape around it to help it get a better seal, or you could just put a bunch of JB Weld around it .

 

[Zex4g63]

When I installed one on my car a few years ago the car was very lean afterwards. You need to retune and most likely add fuel to it. Boost leaks need fixed first tho.

 

[BrokenTsi]

Every time I blow a vacuum line off of my jmfab intake, my car runs like garbage. Its a relatively small vacuum line but it affects performance. Especially if its for the afpr.

 

[l3igl3ang]

Also my CEL is on now with codes po325 = back knock sensor WTF and po443 I dont see how my knock sensor is bad it worked before hand! where is this sensor located? im pretty sure i hooked everything back up when i did the intake swap.

I will clim under the car and make sure none of the vac lines came off the intake as well

 

[GooeyGus]

Knock sensor is screwed into the block below the intake mani. Check to make sure that its plugged in and looks good

 

[BigBeans]

Untuned, the car could run dangerously lean.

Stop experimenting and get some fuel in it before you hurt the motor.

Do you have the ability to datalog?