i just got my zzp header dp combo put on the check engine light came one i can deal with that( but how do i make it go away?) but i driving it an i get on it the it starts makeing a whistleing / sucking noise has ne 1 had this happen to them is there a bad gasket? help please

 

did they put the o2 sensor back in?

 

yes but not the cat sensor

 

you can get a cel eliminator

 

im more worried about the weird whistlen noise

or is it common

 

well, if you are running a cat, then im guessing that would leave a nice big hole in your exaust where the sensor should be...that would prolly throw a cel and make some kind of racket like you are hearing

 

why didn't they put the can sensor in? is it catless or did they just leave that hole open?

edit: I can hear a bit of a "whoooosh" or a sucking noise between the headers and the intake now, but nothing unexpected or crazy..?

 

exactly...hole open = prolly your noise

 

the dp doesnt have a cat

 

well, then, did they tighten all the bolts?

 

id hope soo i took it to a shop

 

dosent mean they did!!! ..that would be the first thing i would check if you dont have an open bung....

 

im gonna go bak over there an let him look at it and ill post bak

 

good idea, you shouldent be hearing anything like that out of it if it was installd correctly

 

what is it 23 lbs ft of tq for those recommended? it doesn't take much to get that... if they can't even do that I wouldn't take it there again... lol. it could also be the gasket between the dp/and the exhaust, the one that came with mine was different that the one that was on the car, i could see how if it wasn't just right it could cause a leak.

 

you prolly have a check engine light too from not having a cat.

 

ok went to the shop and the ******* didnt tighten the bolts from the dp to the header all the way so every thing is fine now i love it it makes a noticeable difference in hp

 

well the car is going to sound different without the cat man. could be a leak though btwn the header and the dp flange, pretty common problem. best way to check, with the car idling, hold a piece of paper around that area and see if it's flapping around in any spot. but more then likely it's just you not being used to it.
As for the CEL, it's from the no cat, and o2 removal. You need someone with HPT to turn it off