need mils with longtubes?

03redfiregt

New Member

Aug 4, 2003

290

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0

Dracut Ma

Apr 17, 2005

#1

• Apr 17, 2005

• #1

OK so i have an issue. I installed bbk longtubes and a modified mrt h pipe with cats in my car last week. Everything was fine since , except tonight i was on my way home and the check engine light came on! I reset the computer and took it for a ride for a few miles and it did'nt come back on. I did'nt think i needed mils with cats. Has anybody else had this problem? I am not sure what to do?

 

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bdcardinal

tree hugger

Jun 10, 2003

3,612

16

69

santa barbara, CA

Apr 17, 2005

#2

• Apr 17, 2005

• #2

get the code pulled. the CEL comes on for other things besides the cats nto existing. you shouldnt need MILs with cats, however some of the aftermarket cats that are sold arent that great at cleaning up the exhaust.

 

03redfiregt

New Member

Aug 4, 2003

290

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Dracut Ma

Apr 18, 2005

#3

• Apr 18, 2005

• #3

COme on ? i know a ton of you have longtubes

 

Mirrahasmycar

New Member

Apr 2, 2005

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0

CT

Apr 18, 2005

#4

• Apr 18, 2005

• #4

get a tuned chip, and get rid of the cats

the MIL shouldn't be on with cats, its the rear O2 sensors that you should check, make sure they are all plugged in

 

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bbueschel

New Member

Dec 26, 2004

26

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0

Maitland, FL

Apr 18, 2005

#5

• Apr 18, 2005

• #5

Mirrahasmycar said:

get a tuned chip, and get rid of the cats

the MIL shouldn't be on with cats, its the rear O2 sensors that you should check, make sure they are all plugged in

Click to expand...

Aftermarket cats flow much higher than stock so MIL's are needed to turn off the check engine light. Or get a power programmer or a tuned chip.