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Old 03-18-2013, 12:07 PM   #1
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Check engine light is on

Changed to a h-pipe and put mil eliminator on and I'm still getting the check engine light on after the light was shut off, need help to figure out what to do next
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Old 03-18-2013, 12:12 PM   #2
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What codes are you throwing?
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Old 03-18-2013, 12:17 PM   #3
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Don't know at this moment

---------- Post added at 12:17 PM ---------- Previous post was at 12:15 PM ----------

Can't check it right now, waiting for my friend to get off so I can plug it up and see
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Old 03-18-2013, 12:31 PM   #4
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Sometimes the MIL eliminators don't always work, see what codes you are getting to really diagnose the CEL
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Old 03-18-2013, 12:32 PM   #5
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+1 if its a p0420/p0430 mil Eliminators not working.
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Old 03-18-2013, 12:33 PM   #6
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K will check later to see what the code is
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Old 03-22-2013, 09:39 AM   #7
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Got check engine light checked, and code shows p0156 to rich or to lean, eliminated my cats and the check engine light came on, put on mil eliminators that I got from someone last week and light went out for one day and came back on, could the mils be bad or could my rear 02 sensors be bad.
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Old 03-22-2013, 09:46 AM   #8
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Most likely its bad 02 sensor. I had a p0158 for 2 weeks every time I would shut it off it would come back on turned out bad 02 It came on right after I did a tune up so I thought it had something to do with that turned out just coincedence it could just b coincedence that it happened after the mil Eliminators. What I did was swapped the wires on the 02 sensors so bank 1 is reading the bank 2 sensor and bank 2 sensor is reading the bank 1 sensor if the code changes to the oppossite bank u found your problem its more then likely the 02 sensor. That's how I narrowed it down. But while I was down there I just replaced both it was worth it at only 48 bucks a piece.
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Old 03-22-2013, 09:49 AM   #9
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Ok thanks man, that's what Im hoping it is but wanted to see what other people thought it could be
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Old 03-22-2013, 09:58 AM   #10
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Let me know how you make out.
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Old 03-22-2013, 09:58 AM   #11
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Will do
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Old 03-22-2013, 04:30 PM   #12
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I've had a similar thing, bought a 98 GT with cats removed and BBK H pipe, check engine light was one so I bought some MIL eliminators and every couple days the chef engine light comes back on, code is a p1443
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Old 03-22-2013, 04:33 PM   #13
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Yeah mine shows up as p0156, going to try new 02 sensors and see if that what it could be
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Old 03-22-2013, 04:42 PM   #14
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Where is the bank sensor 2 located at
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Old 03-22-2013, 05:41 PM   #15
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Passenger side rear o2 sensor near stock h pipe.

---------- Post added at 04:41 PM ---------- Previous post was at 04:40 PM ----------

Take a wire wheel or wire brush clean off the carbon put back in reset cel by disconnecting battery for 15-20min then start up see if it comes back before buyi a new one
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Old 03-22-2013, 05:45 PM   #16
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That sounds like a plan
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Old 03-22-2013, 05:47 PM   #17
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Worked for me multiple times
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Old 03-22-2013, 05:54 PM   #18
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That sounds like a plan
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Old 03-22-2013, 06:25 PM   #19
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Quote:
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Passenger side rear o2 sensor near stock h pipe.

---------- Post added at 04:41 PM ---------- Previous post was at 04:40 PM ----------

Take a wire wheel or wire brush clean off the carbon put back in reset cel by disconnecting battery for 15-20min then start up see if it comes back before buyi a new one
pretty sure bank #2 is on the driver side, since cylinder one is on the passenger side the passenger side would be bank #1, just imo i could be wrong and i dont mind being corrected.
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Old 03-22-2013, 06:31 PM   #20
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Dk clean both ig lol takes 5 min
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Old 03-28-2013, 01:18 PM   #21
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Cleaned both 02 sensor and light came back on about 20 min later, think I'm going to get new 02 sensors and hope that will work
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Old 03-28-2013, 03:22 PM   #22
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lol same thing happened here today after snow melted mine went back out
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Old 05-23-2013, 09:08 AM   #23
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Replaced 02 sensor and check engine light came back on with the same code, wonder if the mil that I have on the car could be bad
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Old 08-07-2013, 10:57 PM   #24
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Replaced 02 sensor and check engine light came back on with the same code, wonder if the mil that I have on the car could be bad
What is a mil?
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Old 08-07-2013, 11:48 PM   #25
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Originally Posted by 2011 Kona Blue View Post

What is a mil?
Seriously?

http://youtu.be/I6zY343_QO0

---------- Post added at 11:48 PM ---------- Previous post was at 11:45 PM ----------

Quote:
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What is a mil?
Back to the subject. He's talking bout the mil eliminator he bought that is suppose to take off engine light when you change midpipe. I may be wrong though.
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Old 08-08-2013, 06:37 AM   #26
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That's exactly what it is Brandon
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Old 08-08-2013, 09:57 AM   #27
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Quote:
Originally Posted by FortyBrandon View Post

Seriously?

http://youtu.be/I6zY343_QO0

---------- Post added at 11:48 PM ---------- Previous post was at 11:45 PM ----------



Back to the subject. He's talking bout the mil eliminator he bought that is suppose to take off engine light when you change midpipe. I may be wrong though.
Thanks bro. American muscle doesn't carry a mil eliminator for 2011 plus
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Old 08-08-2013, 12:54 PM   #28
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Quote:
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Thanks bro. American muscle doesn't carry a mil eliminator for 2011 plus
Go make one. Cliffy has a nice write up on how to on his website and it works i did it on mine no o2 sensor problem
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o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.
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Old 08-08-2013, 02:37 PM   #29
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Go make one. Cliffy has a nice write up on how to on his website and it works i did it on mine no o2 sensor problem
Okay. Thanks bro. Having an off road x pipe, does that shorten the life of the 02 sensor or has nothing to do with it? I wonder of I left my factory cats on would the 02 sensor have still gone bad?
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Old 08-08-2013, 02:40 PM   #30
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+1 make it. Maybe $12 and a half hr of your time.
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Old 08-08-2013, 06:58 PM   #31
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The rear o2 will go bad since the catalyst thats supposed to do its job isnt there to do it. With mil eliminators its supposed to tell the pcm that the emissions are good coming out. The only impirtant ones o2 sensor wise are the first ones the upstream since they read the engines performance and conditions.
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o/r x-pipe flow master 40 series dump downs, cai/ram intake, 75mm c&l throttle body and plenum, pi heads and intake swap, msd wires, stock gears, untuned at the moment, no dyno numbers for now.
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