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Old 11-12-2014, 11:01 AM   #1
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Check engine light

I have and had this check engine light on for a while im pretty sure its because i have no cats on my car the codes are p2240, p0240, p0241. I keep blowing it off but im getting really frustrated with it and WANT IT GONE!! do I need to get new o2 sensors to get rid off them PLEASE HELP!

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Old 11-12-2014, 11:10 AM   #2
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The P0240/P0241 are because the catalitic converters efficiency are below a threshold.

Since you don't have them, the aft O2 sensors are reporting this "inefficiency" to the PCM.

Short of getting your PCM flashed to ignore the aft O2 sensors, you'll have to live with them.

Why did you remove the cats? Because you want loud? You have it, and now of course, you have CEL's.
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Old 11-12-2014, 11:18 AM   #3
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The P0240/P0241 are because the catalitic converters efficiency are below a threshold.

Since you don't have them, the aft O2 sensors are reporting this "inefficiency" to the PCM.

Short of getting your PCM flashed to ignore the aft O2 sensors, you'll have to live with them.

Why did you remove the cats? Because you want loud? You have it, and now of course, you have CEL's.
I got the off road x pipe one because it was a hell of a lot cheaper and i wanted straight pipes on my car, I also heard that tunes like the lope tune that I have sounds crappy with cats. Another reason is because yeah I wanted it loud because im used to being around loud things. Thats kind of what my fear was that i would have to live with it for the rest of my life. By the way that's a great quote from Carroll Shelby.
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Old 11-12-2014, 11:36 AM   #4
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electrical tape.
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Old 11-12-2014, 11:39 AM   #5
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electrical tape.

Huh?
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Old 11-12-2014, 11:46 AM   #6
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electrical tape.

Huh?
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Old 11-12-2014, 01:09 PM   #7
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If you have a tune, just tell them you have an off road x pipe... They'll disable the rear O2s.

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Old 11-12-2014, 01:12 PM   #8
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Huh?
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Put it over the light. Then you won't see it.
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Old 11-12-2014, 01:29 PM   #9
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Quote:
Originally Posted by Strange Mud View Post
electrical tape.
Quote:
Originally Posted by Loudv6 View Post
Huh?
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He means cover up the CEL with electrical tape. It's a joke. And a Simpsons reference.


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Old 11-12-2014, 01:39 PM   #10
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it works for my TPMS light....(Thx for answering for me guys!)
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Old 11-12-2014, 02:17 PM   #11
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If you have a tune, just tell them you have an off road x pipe... They'll disable the rear O2s.

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I did and for some unknown reason they didn't work with that
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Old 11-12-2014, 02:19 PM   #12
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He means cover up the CEL with electrical tape. It's a joke. And a Simpsons reference.


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oh okay sorry about that hahaa
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FRPP lowering springs,FRPP brakes ,3.31 gears
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