Headers installed now getting backfiring.
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Launching!
Joined: Jun 2009
Posts: 247
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Headers installed now getting backfiring. I finally finish installing the LPP headers last night and fired it up this mourning. I was getting crazy backfiring noise. Im thinking maybe I have the a spark plug wire or two in the wrong place...or could it be any of these options:
*I took the ERG off but don't have my block plates on yet
*NO Y pipe installed just the headers with the o2 sensors
My friend said he actually saw sparks shoot out these exhaust under the car when i started it up
Anything else that may cause all this back firing?
*I took the ERG off but don't have my block plates on yet
*NO Y pipe installed just the headers with the o2 sensors
My friend said he actually saw sparks shoot out these exhaust under the car when i started it up
Anything else that may cause all this back firing?
If the headers aren't ceramic coated you shouldn't have a problem with the O2s.
And it is very likely you are burning a wire, spark plug isn't fully seated, or a wire is crossed.
And it is very likely you are burning a wire, spark plug isn't fully seated, or a wire is crossed.
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im not sure about back firing, but i read on here that it wont run right or something along those lines. you could try unhooking them and running it see if it still backfires just to eliminate the possibility. Its probably more related to plugs though like everyone else is saying.
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I ran my car with open headers and it was fine but yes too muh cold air coming back in can mess them up. The first thing I would do is check the plug wire make sure there in the right place and non got burnt also. Plus you need to put get block off plates for the egr that's not going to help anything. And yes flames shooting out the headers is normal when there is no exhaust on there
I actually fried my opti in the process of swapping out headers somehow!! my car was backfiring when i started it up w/ the new headers.. i spilled coolant on it im pretty sure.. but yea TRIPLE check ur wires make sure theyre right...
Well, that's an intake leak to add to your problems.
The only thing about running open headers is that the O2's are closer to fresh air and their readings will be off. You'll burn rich in closed loop. But it shouldn't cause backfiring. I drove mine for a week with open headers.
The only thing about running open headers is that the O2's are closer to fresh air and their readings will be off. You'll burn rich in closed loop. But it shouldn't cause backfiring. I drove mine for a week with open headers.
On The Tree
Joined: Nov 2008
Posts: 162
Likes: 0
From: Houston, TX
I finally finish installing the LPP headers last night and fired it up this mourning. I was getting crazy backfiring noise. Im thinking maybe I have the a spark plug wire or two in the wrong place...or could it be any of these options:
*I took the ERG off but don't have my block plates on yet
*NO Y pipe installed just the headers with the o2 sensors
My friend said he actually saw sparks shoot out these exhaust under the car when i started it up
Anything else that may cause all this back firing?
*I took the ERG off but don't have my block plates on yet
*NO Y pipe installed just the headers with the o2 sensors
My friend said he actually saw sparks shoot out these exhaust under the car when i started it up
Anything else that may cause all this back firing?
Theres your problem right there. Good luck and get those plate ASAP
