Guys we need ur help!!
 

Im buy like 2 week ago test pipes from eBay idk The brand and invidia exhaust q300 and when i install The test pipes The check engine light turn on and sometimes my shift knob sake like couple time like sake very hard and idk why so what is ur recomendation , and them when im press The gas only go to 5rpm when is on N but on D its okay

Ok, based on the broken nature of the post... The only one I can make sense of is your o2 sensor threw a code when you put the test pipes on. You need an anti-fowler or some steel wool to prevent it from being thrown again.

As for the other problems, Im not really sure what you're trying to say...? :confused:

:iagree:

And based on your statement N and D I assume you have an auto like me. The car will not rev past 5k in N with an Auto 370z.

For the vibration check that the exhaust is not rubbing on anything. A lot of exhaust will sit on the Cross Member and vibrate the whole car at certain RPMs. With my exhaust I put a hose clamp over the rubber exhaust hanger and tighten the clamp raising the exhaust off the cross member.

I'm gonna try and translate:

I would suggest getting an OBD reader to see what codes you have. The likely cause is a faulty O2 sensor. There shouldn't be any vibration with the shift knob, especially since this is an Automatic, correct? The rev limiter in neutral is normal I believe, but I could be wrong.

Okay its 6 speed manual my car and what i need to fix it?? And what is The cost

And when my gear is on neutral dont past The 5rpm its okay??

the car wont rev past 5k while in neutral, this is normal.

Start off by going to Autozone and getting the code read. You could have an exhaust leak, or more likely the O2 sensor is detecting that the cat isn't working properly (because it isn't there). If that is the case then an as already stated an anti-fouler adapter should do the trick.

but the i got some damage on the exhauts but is a litle scratch , u think that its the problem

^are you typing on your phone?

Check for a leak where the scratch is. If it's a surface scratch then its not the problem.

Warm sake always does the trick for me.. especially with sashimi..

Is this your first manual car??? vibration/shake on your shift knob is normal..

Ok......is english your second language? Or is it that you talk in l337 speak?

All jokes aside, you should put the car up in the air and take a good look at what you got going on underneath. If not, the posts above are good advice. Good luck.

Yeah, but he has sake on his knob. Is that normal?

no. he's obviously wasting good sake.

like everybody else said - 5k rpm limiter in neutral is normal. to rev it higher you'll need to be in a gear.
get the code read, because right now it could be a variety of things. most have simple fixes though, so this should not be a big deal.
stop drinking in your car :)

Yeah i go to Exhaust shop and he tell me we got Exhaust leek on The screw i think beacuse its Roo small idk tomorrow i get The codes