SES light after SLP header install
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On The Tree
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SES light after SLP header install I just had SLP headers installed with the SLP Cats and Y pipe. I have driven about 120 miles and now my ses light is on. What the heck is this from? Do I need new O2 sensors or should I just go with the O2 sims. I live in So. Cali so I have to have the cats on there. Please help. 
you'll need o2 sims for the rears or you WILL throw up an SES code. i'd pull the code first and see if its even related to an o2 sensor. you do have the front o2 sensors plugged in right?
nice to see another californian going the LT route instead of shorties
nice to see another californian going the LT route instead of shorties
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Joined: Nov 2001
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From: Mi./Al.
As mentioned before you need to pull the code ( if you don't have a OBD II tester then head to AutoZone for a free test), I've had ses lights come on before on different cars and simple cleared them. Many times the computer just gets a bad signal which then sets the ses light, if there's a real problem the light will come back on soon after you clear it.
Al
Al
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Thanks for the info guys. I cleared it and am going to take back to muffler shop today to have it checked out anyways. I will prob go with the sims because that sounds like what it is. I thought that the SES wouldn't come on if I ran the O2 sensors, but I guess that was wrong. Thanks for the help.
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From: Marysville, OH
Originally Posted by DanoHB
I thought that the SES wouldn't come on if I ran the O2 sensors, but I guess that was wrong.
. I think however those were and are not common considering what the simms actually do. If the ses was related to your rear O2's then I think that simms should clear that up for you, I have had mine on for a few months and have not had an ses light for them yet. 
