Headers = Blinking SES light
Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 1,079
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From: Columbus NJ
Headers = Blinking SES light
Hello all, I installed dynatech Lt's with hiflows and xpipe a few days ago, I also did plugs and wires. After completion I started it up and check engine light came on and stayed on, I reset the battery and still the same thing. Ilet it sit connected overnight and magically the check engine light went off, until you hit about 80mph then it blinks a few times and goes away. Can someone please help me diagnose this problem? 
Nick
Nick
Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 1,079
Likes: 0
From: Columbus NJ
Misfire
It says a random misfire. If it were one single plus wouldn't give a specific cylinder? I'm not sure on this computer stuff. I put ngktr6's in it because I bought a blower and I'm going to install next weekend, i put new wires on also. I hooked up all the o2's and the fronts are side to the side and rears are cris crossed like they should be.
Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 1,079
Likes: 0
From: Columbus NJ
misfire
Is it okay to run your wires without the aluminum spring loaded heat boot covers? There's about a good 1/8-1/4 inch distance from the boot and the tube. And the only way you can tell if the plus is cracked is prety much by pulling all 8 out? Thanks.
Race Director
Joined: Mar 2005
Posts: 10,078
Likes: 17
your cats probably aren't getting the job done, like the stock ones were. You will probably have catalytic material degradation soon, if not already. My 'high flow' cats didn't last more than a few months.
My symptoms were similar to yours.
My symptoms were similar to yours.
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Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 1,079
Likes: 0
From: Columbus NJ
Blinky
I inspected my cats and al lthey seemed like in top shape.. The cel went away but it flashed at full throttle 80mph. Ichecked codes nothing come sup except for a bunch of letters acdl or something simmilar to that with numbers and letters. I'm not sure what it is, when you hold options and push fuel 4 times, there are no codes and then these letters and numbers show up.. Any idea?
Race Director
Joined: Mar 2005
Posts: 10,078
Likes: 17
my guess is that you are too rich and the cats aren't removing enough pollutants?
Maybe it is an efficiency issue related to the particular cat.
A fine solution would be o2 simms. I did that on my car, about $100/pair.
Maybe it is an efficiency issue related to the particular cat.
A fine solution would be o2 simms. I did that on my car, about $100/pair.
Thread Starter
Burning Brakes
Joined: Sep 2006
Posts: 1,079
Likes: 0
From: Columbus NJ
Thanks
Well I know i eventually need a tune, i bought a vortech kit i'm going to install and wanted to pay for one tune not two, you know what i mean? I put colder plugs in and i'm going to put a 160 stat in as well. Is it harmful to run the spark plug wired without the heat covers?
Race Director
Joined: Mar 2005
Posts: 10,078
Likes: 17
Well I know i eventually need a tune, i bought a vortech kit i'm going to install and wanted to pay for one tune not two, you know what i mean? I put colder plugs in and i'm going to put a 160 stat in as well. Is it harmful to run the spark plug wired without the heat covers?
Racer
Joined: Oct 2006
Posts: 483
Likes: 0
From: Austin TX
It says a random misfire. If it were one single plus wouldn't give a specific cylinder? I'm not sure on this computer stuff. I put ngktr6's in it because I bought a blower and I'm going to install next weekend, i put new wires on also. I hooked up all the o2's and the fronts are side to the side and rears are cris crossed like they should be.
Burning Brakes
Joined: Sep 2004
Posts: 1,056
Likes: 0
From: Havelock, NC ( NJ Resident )
I agree check everthing plug wires, look for crack plugs, But most cars learn and the check engine goes off. So just keep driving the car and hope it learns. Have your Mechanic or yourself reset the check engine light and let it learn. I ran my car with header for several months without a tune, I waited for a major reason H/C Maggie or turbo to have my ride tuned, my PCM learned and adjusted to the changes and the addition of headers and Catbacks.
Last edited by JR_VET; Jul 30, 2007 at 11:20 PM.
