CEL with O/R X

01GT · May 25th, 2007, 04:19 PM

So a couple months ago I installed my UPR O/R X....and of course the CEL came on, but come to find out I had a leak at the manifold so I tightened it up and since then I haven't got my CEL.... I've never heard of anyones CEL not coming on when they went to an O/R mid pipe.... whats going on?

Dawgs2099 · May 25th, 2007, 04:28 PM

I installed my MAC Prochamber yesterday. My CEL didnt come on until this morning. I knew it would come on sooner or later, but didnt know why it didnt come on to begin with.

01GT · May 25th, 2007, 04:50 PM

Yeah I've been running my midpipe for a while almost a thousand miles now with no check engine light....

ChrisJ · May 25th, 2007, 06:20 PM

Get some MILS...

The reason it took a while is that the rear 02's are not checked all the time...Only under certain conidtions...

01GT · May 25th, 2007, 07:50 PM

Well I've ran my car through the entire powerband, in cold and hot weather, and still no CEL....

Oh, well I should have a Predator soon so I can just disable it.

May 25th, 2007, 04:19 PM	#1
01GT Regular Join Date: May 2007 Location: NAS Lemoore, CA Posts: 227	CEL with O/R X So a couple months ago I installed my UPR O/R X....and of course the CEL came on, but come to find out I had a leak at the manifold so I tightened it up and since then I haven't got my CEL.... I've never heard of anyones CEL not coming on when they went to an O/R mid pipe.... whats going on? __________________ Don't buy from this guy: 1fstmach1 http://forums.rpmplanets.com/sigimages/1952.png

May 25th, 2007, 04:50 PM	#3
01GT Regular Join Date: May 2007 Location: NAS Lemoore, CA Posts: 227	Yeah I've been running my midpipe for a while almost a thousand miles now with no check engine light.... __________________ Don't buy from this guy: 1fstmach1 http://forums.rpmplanets.com/sigimages/1952.png

May 25th, 2007, 06:20 PM	#4
ChrisJ The Cable Guy... 2002 Mustang GT SLOW Join Date: Jun 2006 Location: Shepherdsville, Kentucky Posts: 15,362	Get some MILS... The reason it took a while is that the rear 02's are not checked all the time...Only under certain conidtions... __________________ My Junk www.myspace.com/cjobe

May 25th, 2007, 07:50 PM	#5
01GT Regular Join Date: May 2007 Location: NAS Lemoore, CA Posts: 227	Well I've ran my car through the entire powerband, in cold and hot weather, and still no CEL.... Oh, well I should have a Predator soon so I can just disable it. __________________ Don't buy from this guy: 1fstmach1 http://forums.rpmplanets.com/sigimages/1952.png

May 25th, 2007, 04:28 PM	#2
Dawgs2099 Regular 2000 Mustang GT Join Date: Apr 2007 Location: Westland,MI Posts: 59	I installed my MAC Prochamber yesterday. My CEL didnt come on until this morning. I knew it would come on sooner or later, but didnt know why it didnt come on to begin with.

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