I had a friend install a spacer and now in drive and anything under 25MPH it has a vibration and it lags in on throttle resonse now wtf. DO i need a tune? Pleasehelpppp

 

Maybe your upper plenum is rubbing against the strut bar. Check if for clearance first. If it's touching, loosen the strutbar and try driving again.

 

whether you need a tune or not isnt the problem. Something went wrong with the install. Friends doing installs FTL.

 

Make sure there is a spacer under the strut bar to give it clearance from the upper plenum.

If I were you just look over the instructions again and make sure everything was done right.

 

Some friend that is.

 

maybe there is a leak.

 

Bottom line ---This shouldnt be happening. There is no quick fix or band-aid. Take it off and reinstall it. There a gitch somewhere. You HAVE to eliminate that possibility before you move on.

Plug a vacuum gage into your plenum and see what you get for a reading at idle

 

considering his post... do you think he knows what you're talking about when you say this?

cuz i...personally.......don't.

 

BTW--You're at Sea level so it should be steady at a strong 20 inches or so

 

Sorry ---Im a coot and tend to assume. If he is getting a rough idle and a lag, there may be a vacuum leak from a poor installation seal. A vacuum gage plugged into the 3/16 vacuum port with the rubber cap on it, on the front passenger side of the upper plenum will verify that

 

interesting... i'm gonna have to go looking for that vacuum port. never noticed anything like that.

 

Very easy to find---If you are looking down at your motor from the front, It is located at approx 7:00 -------Ah ....PM. Has a black rubber cap on it

 

ok hold on, i'm going to go look now. will report back in 5 mins, unless i get all caught up staring at the engine bay like i tend to do.

 

hmmm..might be where the vacuum leak is then...

 

I will be on the edge of my seat until you return

 

ok i officially have no clue what you're talking about. didn't see anything that might be a vacuum port. am confused, and slightly embarassed.

is it under the black plastic engine cover thing with the nissan badge on it?

 

Maybe, but generally not unless the rubber cap is brittle and cracked from heat. A upper plenum/spacer leak is generally around the perimeter or lower plenum Gasket

 

hey, i'm not the one with the possible leak, the OP is.... i'm just a too-curious bystander.

 

but on a serious note i also 2 never knew that was there

 

also, i just totally burned my hand. damn the bay stays HOT for a long *** time.