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Check engine light

1K views 11 replies 6 participants last post by  Loudv6 
#1 ·
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!

Cheers:banghead:
 
#2 ·
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.
 
#3 ·
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.
Cheers
 
#5 ·
Huh?
Cheers


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#7 ·
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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#11 ·
I did and for some unknown reason they didn't work with that
Cheers


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